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4 - UCSD Department of Physics

1. TA
2. HEWLETT PACKARD HP E361XA 30W HP E3610A KR20600101 HP E3611A KR20600101 HP E3612A KR20600101 8 2 8 2 8 3 8 4 8 4 8 4 8 4 GEMA 8 4 8 4 BIRR 8 4 8 5 8 5 8 5 8 5 8 5 8 5 8 6 8 6 8 6 5959 5304 1992 2 5959 5307 8 1
3. CURRENT 0A MEL b ic VOLTAGE ott c CC SET CURRENT CC LED o
4. 4008 40 50 AE 1 1940 8 3 Ne E3610A 0 8V 3A 0 15Y 2A PACKARD POWER SUPPLY 1558 178 la O 0 0 240 VDC MAX TO L
5. oe E3610A E3611A E3612A dual range HP LF IC 39 en za RANGE Hol SAS bo AS WARNING x4J
6. appendix 1 AC 40 40C 55 ti 40C 1 C 1 HEWLETT E3610A PACKARD DC POWER SUPPLY amps
7. 240V RAM BSP 5 5 7 6
8. CC SET CURRENT 3 1 2 CE36IIA 3 H 3 7 2 AC115Y 10 47 63Hz 0 8 TOW AC100V 10 47 63Hz 0 8 70W AC230V 10 47 63Hz 0 4A 70W E3610A 0 8V 0 3A 7 1 0 15V 0 2A E3611A 0 20V 01 54 7 lt 1140 35V 0 0 85 E36124 0 60V 0 0 5A 7 140 120V 0 0 25A 0 01 42mV 0 0IX ImA ETE 0 01 2mV 0 01 lmA 2004 V rms 2
9. AC DC E3610A E3611A E3612A ICER Y ZEN RANGE E
10. E3610 A 0 8 V 0 3 A 0 15 V 0 2 A EN E3611 A 0 20 V 0 15 0 35 V 0 0 85 A E3612 A 0 60 V 0 0 5 A 0 120 V 0 0 25 A Pour MAX MES Load Regulation 30 Watts 0 Ars 0 012 2 mV S do 0 0 01 1 mA HSE Line Regulation A 449 99 0 01 2 mV s 0 01 1 nni a A U SAO Vogue 212 Ripple Noise 200 N rms 2 mV pp 10 Hz 10 MHz lst NR P gt K 200 uA rms 1 mA p p 10 Hz 10 MHz E3612A V 120 V Va 60 V In 0 23 A le 0 5 A 00914 40074 40014 550 Lew 1 ROAD 3610A 10 mV AM E361LA 100 mV _ E3612A 100 mV de 1 0 02 1 mV i gt GAR I 0 02 2 0 Rola o wicej WESA PRE ANA E 10 mV
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12. a 0 Az 2 E b a LINE 0N St b RANGE ni 8919 AL Vdo Z 9 CC SET 4 0 mA aa CC SET MES x 4
13. Ora L 10 KSI L VOLTAGE CURRENT
14. Pour MAX 30 Watts i V Ln le 2A 8V 3A E3611A 0 85A 20V 1 5A E3612A 0 25A 60V 0 5A E3610A E3610A E3611A E3612A HAE 100 0 1 E3610A E3611A E3612A MAES DZ OY F RID D WO THA MATES E3610A E3611A E3612A 3 8kg 4 2kg 3 469 in RI R 0E3 AC230V 10 47 63Hz 0E9 AC100V 10 47 63H2 HP KR Korea 3
15. TAE ARE AS ULE FI AFAMADOS TA PERA TEA PU ER ARALAR BARS AE EN NS A RFE RUPEES CRT E NA E FEMME RE RS BR RE 1 MES RARE EI n Fey WN SR RAY BIE AIR tit gtz s VIE 3 TEETER o A A RAIA BE AC ka AVERI ET ER GENE T Bd DES ele me BEEN ABBE E TER gt BIETET EN EN TIERES HP GRAFA 61 OA E36 1 1A 0 36 2A E 88 RSS ANSA RIEN IC SAUER Fit SN ar RANGE SIDE ERBAA DN MIA Eee PRESIDIR FAR OMR SK Re HP ARUBA 1B BE M o REP fas ARSE FL L P S m EME gt LU H M RAR ia e lt CEE BERR CRAS TERME RABAT SANE MENAT
16. e o we Isolation Voltage 240 HAUTES Z q o ur AU SH 3 War Sue 22 T N a O Eda SA 4 alt Shield Wire amp GATE DE RE z a Y LED a ja Sr so gt b WES lt 4 turn NN cee aa PA de 5
17. SS WARNING 23152 Age 4 CAUTION 2482 dz di 5 CAUTION tt E E CC SET 3 1 2 ESGITAR 3 3 z wk TW 1 115 Vac 10 47 63 Hz 0 8 A 70 W 100 Vac 10 47 63 Hz 0 8 A 70 W 3 230 Vac 10 47 63 Hz 0 4 A 70 W gaso
18. BREE B HB ROR MAR WIA EACH 230 Vac 10 47 63 Hz AE QED IOO Voc 10 47 63 Hv FM ERES E ZF PURE RE B NFRTHEFN 1291 2292 S55 HAMBRE TOBA BET HALES BBR ARTE TIE ROR ARATE gt Alas A ba ees Fl Ages eit hye FE HIDE BAM RE lt BL fer S RAR AUER STAM REA SERIA STEHEN REANO HP HRHREARA Wa A EAE A NE RR EEE FUERTE HP 28 013 ERE EB MARAT A ACA SE EA 1 12 534 n 8 4 SRE di ALLE n E AAC AREA HUE MP NA ER ZII eS TUR ATE AC BK RATEN o HA RER EME LAER EBS OR Ub ate SPH 0 25 RA ARAM SZR AOC FPE RU EA AOC 55C 1 AS ZKE IR ER RE ME EC JE RP AE gt F T E BARA AAA DARA YA EA AI REM Ht Pe OS BB SB EHA SEA ARE BE eth SAAD AE RAP LO RAKI TATEN AE F pe F ARES MERE ZB 25 BB str AAC OZ Tr th RE PCE Fa HP Caesar HEWLE
19. HBOS REDEE 3 9871898 VOLT SERA CURRENT CC 9 ava CURRENT 3 1 2 18 E3611 A 25 3 3 115 Vue 47 63 Hz OSA 10 27 65 OW 230 Vac 410 47 8512 7OW E36 OF ZAR CE OVS OB HV GE 2A O ZE 200 OFE O F1 0 85 A 3612A OV OF OFFA LOAD REGULATION dr AA bi ZE BH 2 rev B J O RARA AAA 1 mA LINE REGULATION BEER BRM 001 2rnv EE a AIL fn U R 19 Eh A FERMER RIPPLE NOISE BEBE Hs Vire R 2 Hz 1 ER 200 uA ms 22 Hz i 2 am Be EQ it EEE SR lt A E361 iA pe BA EX LE BE 20 EM
20. 1 1 91 2 92 2 5 ORFS RSID AT 00101 ax i 212 3 mm 8354 jn 318 4 mm 1 4 12 534 in COM
21. 3 41742 50 usec a Di de Isolation 240 Vde Be an 3 Output Drift a er a RAE TE 302 8 A A A HU 0 1 5 mV nut s 30 8 o Hu st s gt LI 0 126 1 10 mA wl E3612A 100 mV 2 mA 25 5 0 5 2 PPSA Counts oa oH 8 84 lbs 3 8 kg 9 3 ar Be x 5 165 4 2 kg LE L 23 88 1 mm 3 469 in 2692 mm 10 591 n MMM 00000 12 534 in 1 230 Vac 10 47 63 Hz 9 100 Vac 17 10 47 63 Hz La Wee R
22. 33719 3 ni MS da BAS HEWLETT PACKARD TISCH NETZGERATE DER SERIE HP E361XA 30W BETRIEBS UND SERVICE ANLEITUNG F R DIE MODELLE HP E3610A Serie KR20600101 und h her HP E3611A Serie KR20600101 und h her HP E3612A Serie KR20600101 und h her Inhaltsverzeichnis SICHERHEITSHINWEISE 3 2 ALLGEMEINES 3 2 Ger tebeschreibung 3 2 Technische Daten und Kennlinie 3 3 Optionen 34 Ger tekennung 3 4 INSTALLATION 3 4 Wareneingangspr fung 3 4 Aufstellort 3 4 Versorgungsspannung 3 4 Netzkabel 3 4 BETRIEB 3 5 Einschaltpr fung 3 5 Konstantspannungs Betrieb 3 5 Konstantstrom Betrieb 3 5 Anschlu von Lasten 3 5 Betrieb im Grenzbereich 3 6 Impulsf rmige Lasten 3 6 Kapazitive Lasten 3 6 Aktive Lasten 3 6 HERSTELLERBESCHEINIGUNG 3 6 SERVICE INFORMATION 1 Anleitung Teilenummer 5959 5304 Ausgabe Februar 1992 Mikrofiche Teilenummer 5959 5307 SICHERHEITSHINWEISE Die folgenden allgemeinen S
23. ON b RANGE c VOLTAGE 0OVdc d CC SET CURRENT e 0 0 15Y 2A OUTPUT 1 240 VDC MAX TO 1 AC VOLTAGE CV LED b CC SET CURRENT
24. modo continuo per ottenere la tensione la cor rente e i valori di uscita desiderati 6 2 Non toccare circuiti attivi AI personale operativo fatto divieto assoluto di rimuovere i pannelli di copertura sostituire componenti ed effettuare regolazioni interne Tali interventi devono essere eseguiti solo da personale qualificato Simboli usati nelle norme di sicurezza Simbolo della guida il prodotto contrassegnato da questo simbo lo quando necessario che l uten ti consulti la guida Indicano il morsetto di messa a terra ll simbolo WARNING indica un pe ricolo e serve a richiamare l atten zione su una procedura o un inter vento che se mal eseguiti potreb bero arrecare danno Non proce dere se le condizioni indicate non sono state perfettamente compre se e rispettate i simbolo CAUTION indica un ri schio e serve a richiamare l atten zione su una procedura che senon eseguita correttamente pu provo care un danno ola distruzione dello strumento o di una parte di esso Non procedere oltre il segno di AT TENZIONE finch le condizioni in dicate non sono comprese e sod disfatte comando VOLTAGE sul pannello frontale pu essere usa to per fissare il limite di tensione quando l alimentatore usato come fonte di corrente costante 1 comando CUR RENT viene invece usato per fissare il limite della corrente di uscita quando l alimentatore viene usato come fonte di tensione costante I
25. ASA 9 gt N kt to to N N s N t no N NN Dan a R a LI al Manual Part No 5959 5304 Microfiche Part No 5959 5307 21 19924 241 loto Es A i Za de 1 SAS 3 AC esa ao dae BREA AC
26. SET enfonc e r glez le bouton CURRENT la limite du courant de sortie Dans des conditions r elles de fonctionnement si un changement de charge provoque un d passement de cette limite l alimentation passe automatiquement du mode tension constante au mode courant constant et la tension de sortie chute en proportion Mode de courant constant Pour configurer une alimentation de fa on s lectionner une sortie courant constant Tournez le bouton CURRENT fond dans le sens des aiguilles d une montre pour v rifier que la sortie inverse est nulle puis mettez l alimentation sous tension b Reglez le bouton VOLTAGE sans charge connect e sur la limite de tension de sortie d termin e par les conditions de charge Dans des conditions de fonctionnement r elles si un changement de charge provoque un d passement de cette limite l alimentation passe automatiquement au fonctionnement tension constante la limite de tension pr r gl e et le courant de sortie chute en proportion Reglez le bouton CURRENT sur le courant de sortie voulu tout en maintenant la touche CC SET enfonc e l indicateur CC ne s allumera que lorsque l alimentation sera charg e Connexion de charges La sortie de l alimentation est isol e de la terre L une ou l autre des deux bornes de sortie peut tre reli e la masse ou la sortie peut flotter jusqu 240 volts par rapport la terre Chaque charge doit tre connect
27. ar 5057 2 CZ He ok ul BAe A OWE TAE Di 25 a 84 AAS
28. 15 58 0 8 3 0 1 2 O Ver sa a OUTPUT FIGURA 2 CONTROLES E INDICADORES DEL PANEL FRONTAL OPERACION Verificaci n de Secuencia de Encendido del Instru mento El siguiente procedimiento describe el uso de los controles e indicadores del panel frontal ilustrados en la Figura 2 y asegura que la fuente es operativa a Conecte la tecla LINE b Configure la tecla RANGE para el rango deseado Gire la tecla de control VOLTAGE completamente en sentido contrario a las agujas del reloj para asegurarse de que la salida disminuye a 0 Vdc y despu s girela en el sentido de las agujas del reloj completamente para asegurarse de que el voltaje de salida aumenta al maximo voltaje de salida Mientras pulsa la tecla CC SET gire la tecla de control CURRENT completamente en sentido contrario a las agujas del reloj y despu s en el sentido de las agujas del reloj completamente para asegurarse de que el valor de corriente limite puede configurarse desde cero hasta el valor estimado m ximo Conecte la carga a los terminales de salida Riesgo de Descarga Desconecte la alimentaci n de corriente alterna antes de hacer la conexi n a terminales de salida Operaci n en Modo de Tensi n Constante Para configurar una fuente de alimentaci n para la opera ci n a voltaje constante haga lo siguiente a Encienda la fuente de alimentaci n ajuste el control VOL
29. GUIDA OPERATIVA DEI MODELLI HP E3610A Serie KR20600101 e successivi HP E3611A Serie KR20600101 e successivi HP E3612A Serie KR20600101 e successivi Indice NORME DI SICUREZZA 6 2 GENERALITA 6 2 Descrizione 6 2 Specifiche e caratteristiche 6 3 Opzioni 6 4 Identificazione degli strumenti 6 4 INSTALLAZIONE 6 4 Ispezione 6 4 Collocazione e raffredamento 6 4 Alimentazione di ingresso 6 4 Cavo di alimentazione 6 4 FUNZIONAMENTO 6 5 Controllo all accensione 6 5 Funzionamento a tensione costante 6 5 Funzionamento a corrente costante 6 5 Collegamento dei carichi 6 5 Funzionamento oltre i valori di uscita consentiti 6 5 Variazioni di carico 6 6 Carichi capacitivi 6 6 Carico di corrente inverso 6 6 INFORMAZIONI PER L ASSISTENZA A 1 Manuale Parte N 5959 5304 Stampato Febbraio 1992 Microfiche Parte N 5959 5307 NORME DI SICUREZZA In tutte le fasi di funzionamento manutenzione e riparazio ne dello strumento importante osservare le precauzioni riportate qui di seguito La mancata osservanza di tali nor me o degli avvertimenti evidenziati nella guida una viola zione degli standard di sicurezza fissati a livello di progetto di fabbricazione e di utilizzo dello strumento La Hewlett Packard non si assume alcuna responsabilit per eventuali danni derivanti dalla mancata osservanza delle norme di sicurezza Prima di inserire la spina Verificare che il prodotto sia regolato sulla tensione di rete Mess
30. 610 PACKARD bc POWER SUPPLY 0 8Y 3A 0 1 2 240 VOC MAX TO 1 FIGURE 2 COMMANDES ET INDICATEURS DE LA FACE AVANT UTILISATION Proc dure de v rification la mise sous tenslon La proc dure suivante d crit l utilisation des commandes et indicateurs de la face avant repr sent s la Figure 2 et permet de v rifier que l alimentation fonctionne correctement a Appuyez sur la touche LINE position ON b Appuyez sur la touche RANGE pour la gamme voulue Toumez le bouton VOLTAGE fond dans le sens inverse des aiguilles d une montre pour v rifier que la sortie est nulle puis fond dans l autre sens pour v rifier que la tension de sortie augmente la valeur maximale d Tout en maintenant la touche CC SET enfonc e tournez le bouton CURRENT fond dans le sens inverse des aiguilles d une montre puis fond dans l autre sens pour v rifier que la limite de courant peut tre r gl e entre z ro et la valeur maximale pr vue e Connectez une charge aux bomes de sortie Risque de choc lectrique D branchez l appareil avant de connecter une charge aux bornes de sortie Mode de tension constante Pour configurer une alimentation de fa on s lectionner une sortie tension constante a Mettez l alimentation sous tension et r glez le bouton VOLTAGE sur la tension de sortie voulue bornes de sortie ouvertes L indicateur CV doit s allumer b Tout en maintenant la touche
31. Konstantspannung Weniger als 200 HV effektiv und 2 mV Spitze Spitze 10 Hz 10 mHz Konstantstrom Weniger als 200 HA effektiv und 1 mV Spitze Spitze 10 Hz 10 MHz TEMPERATUR BEREICH O bis 40 C bei Vollast Stromabfali von 1 pro zwischen 40 C und 55 C TEMPERATUR KOEFFIZIENT Konstantspannung Weniger als 0 02 plus 1 mV pro Grad Konstantstrom Grad C EINREGELZEIT Weniger als 50 us bei einer nderung von Vollast auf Halblast oder umgekehrt und einer Ausgangsspannungs nderung von maximal 10 mV Weniger als 0 02 plus 2 mA pro ISOLATION 240 Vdc DRIFT Konstantspannung Weniger als 0 1 plus 5 mV Gesamt drift Uber einen Zeitraum von 8 Stunden nach einer Aufw rmzeit von 30 Minuten Konstantstrom Weniger als 0 1 plus 10 mA Gesamt drift ber einen Zeitraum von 8 Stunden nach einer Aufw rmzeit von 30 Minuten i GENAUIGKEIT DER MESSANZEIGE 0 5 2 Ziffern bei 25 C 5 C UBERLASTSCHUTZ Das Netzgerat wird permanent durch eine Konstantstrom quellen Schaltung gegen jegliche berlastung gesch tzt einschlie lich eines direkten Kurzschlusses am Ausgang Die Ausgangsspannung wird im Konstantstrombetrieb durch die Konstantspannungs Schaltung begrenzt ANSCHL SSE Auf der Frontplatte des Ger tes stehen drei Anschlu buchsen zur Verf gung Es kann jeweils der positive oder der negative Pol mit der Massebuchse verbunden werden AUSGANGS KENNLINIE P
32. O PA NK AER 4 SC AE CARS OOo 0 7 rnv ETES EA OO FM TA taz da AK B EER DO us At BE O rev zesp 2240 USE SOIE AK GO Sig ROR SPL TE AAA S mv THR TI E 1 HN IOmA SET LOC WB EO Di 2 Eita AE a BB j OR Bh ve HOSA Oth 8 3 NEAR CA BE Bik VE Argo LICH MS go Tea H h T Mais Sk Pour MAX 30 Watts MTSU Au gelt E36 TOA E361 TA E2617A 15 E30 LOA 361 TA E3 ZA 136 E36 ZA AME SE 100 O 1 d AHA 291 5 gt Current MER gt ah FE a 3 IPV VO2 BV IO1 IO2 3 A VO2 20 V 0 1 oo 102 5 A 2OV VO GOV O 25A 102 Saa A i f D MA O mA mA OI QL mv 36 A 2 55 1361 HHE AR tE EIG TOA Bi ESA 1A Beine LPA GE GK EE OY SA DA OO Vs Bt 2 TrA Om EEE 9 3 Ibs 4 2 KG 3 469 in 318 4 mm
33. Pour r duire au minimum les risques de choc lectrique le ch ssis et le coffret de l appareil doivent tre reli s une terre lectrique L appareil doit tre connect au secteur par un cable d alimentation trois conducteurs le troisi me assurant la liaison avec une terre lectrique au niveau de la prise d alimentation Toute interruption de ce conducteur de mise a la masse ou d connexion de la borne de terre de protection engendrerait un risque de choc lectrique pouvant entrainer des dommages corporels Si l appareil doit tre aliment par l interm diaire d un autotransformateur d volteur externe assurez vous que la borne commune de ce dernier est connect e la ligne neutre borne reli e la terre du secteur Ne pas utiliser dans une atmosph re explosive Ne pas utitiser l appareil en pr sence de gaz ou de fum es inflammables GENERALIT S Description Ce manuel d utilisation et de maintenance d crit trois alimentations HP deux gammes les E3610A E3611A and E3612A Il s agit d alimentations de laboratoire usage g n ral particuli rement utiles pour alimenter des circuits int gr s exp rimentaux aussi bien lin aires que num riques Sauf indication du contraire toutes les informations fournies dans ce manuel s appliquent aux trois mod les La gamme de sortie voulue est s lectionn e l aide de la touche RANGE de la face avant La tension et l intensit peuvent tre r gl es en c
34. an Z 1591 2 92 DE Week na WT to 4 3 E 2 4 RAFAL ago 1
35. faible intensit lorsque la gamme de courant haute est s lectionn e E3610A Va 15 V 8 Vl lo E3611A V 35 V Vaz 20 V 0 85 A 15 E3612A V 120 V 60 V l 0 25 A L 05 A RESOLUTION DE L AFFICHAGE Tension E3610A 10 mV E3611A 100mV E3612A 100 mV Courant E3610A 10 mA E3611A 10 mA E3612A 1 mA VITESSE DE PROGRAMMATION DESCENDANTE Temps maximal pour que la tension de sortie passe de 100 0 1 de la valeur de sortie maximale pr vue EN L ABSENCE DE CHARGE E3610A 2 5 s maximum E3611A 1 0 s maximum E3612A 1 5 s maximum RESOLUTION Variation minimale de courant ou de tension de sortie pouvant tre obtenue l aide des commandes de la face avant E3610A Tension 10 mV Courant 5 mA E3611A Tension 10 mV Courant 5 mA E3612A Tension 100 mV Courant 2 mA REFROIDISSEMENT Par convection POIDS 3 8 Kg net 4 2 Kg emball REMARQUE CARACTERISTIQUES SUPPLEMENTAIRES 3 469 in 000 N 2692 10 591 in 12 534 in PH FIGURE 1 DIMENSIONS Options Les options disponibles avec cet appareil installees en usine sont les suivantes Option Description OE3 Tension secteur 230 Vca 10 47 63 Hz Monophas OE9 Tension secteur 100 Vca 10 47 63 Hz Monophas Identification des appareils Les alimenta
36. me REN c aracremencs RECOMMENDED MODEL HP54600A RMS Voltmeter True rms 10 MHz bandwidth HP3400A Sensitivity 1 mV Accuracy 5 HP3456A Oscilloscope Sensitivity 2 mV Bandwidth 10 MHz 100 MHz Input Differential 50 ohm 100 ohm Voltage Range 240 Vdc Current Range 10 Adc Open and short switches Transient on off Load Resistor For high current 2 6 ohm 50 W 13 3 ohm 50 W 120 ohm range 50 W Current Sampling Resistor 0 1 ohm 0 1 10 W 1 ohm 1 10 W Variable Voltage Auto Transformer Range 85 130 and 200 260 Volts Performance testing A Calibration adjustments Electronic Load Multimeter Resolution 100 nV i Accuracy 0 0035 HP6063A Constant Voltage CV Test The measuring device must be connected as close to the output terminals as possible when measuring the output impedance POWER SUPPLY transient response regulation or ripple of the power supply in order UNDER TEST to achieve valid measurements A measurement made across the load includes the impedance of the leads to the load and such lead lengths can have an impedance several orders of magnitude greater than the supply output impedance thus invalidating the measure DIGITAL ment For all CV tests set the output current at full rated output to _ VOLTME TER assure CV operation Load Effect Load Regulation Definition CV Load Effect is the change in dc output voltage when Rs 0 1 ohm 0
37. Courant constant lt 200 uV eff et 1 mA cr te cr te 10 Hz 10 MHz PLAGE DE TEMPERATURE 0 40 C pour toutes les valeurs de sortie pr vues R duction de 1 par C du courant pr vu entre 40 C et 55 C COEFFICIENT DE TEMPERATURE Tension constante lt 0 02 1 mV par C Courant constant lt 0 02 2 mA par C TEMPS DE REPONSE TRANSITOIRE lt 50 usec pour le r tablissement de la sortie 10 mV maximum apr s une variation de pleine charge demi charge du courant de sortie ou vice versa ISOLATION 240 Vcc DERIVE DE LA SORTIE Tension constante D rive totale lt 0 1 5 mV apr s 8 heures avec un temps de pr chauffage initial de 30 minutes Courant constant Derve totale lt 0 1 10 mA apr s 8 heures avec un temps de pr chauffage initial de 30 minutes PRECISION DE L AFFICHAGE 0 5 2 comptes 25 C 5 C PROTECTION CONTRE LES SURCHARGES Un circuit courant contant actif en permanence prot ge l alimentation contre toutes les surcharges et contre un court circuit direct plac aux bornes Ce circuit limite la tension de sortie en fonctionnement courant constant 4 3 BORNES DE SORTIE La face avant comprend trois bomes de sortie qui sont isol es du ch ssis La borne positive ou n gative peut tre connect e la borne de masse CARACTERISTIQUES DE SORTIE REMARQUE Des tensions de sortie sup rieures V sont possibles
38. e aux bomes de sortie de l alimentation l aide de paires de fils de connexion distinctes Ceci r duit au minimum les effets de couplage mutuel entre les charges et permet d exploiter au mieux la faible imp dance de sortie de l appareil Chaque paire de fils de connexion doit tre aussi courte que possible et torsad e ou blind e afin de r duire le bruit Si les fils sont blind s connectez une extr mit la bome de masse de l alimentation et laissez l autre extr mit libre Fonctionnement au del des valeurs de sortie pr vues Les commandes de sortie permettent de r gler la tension ou le courant sur des valeurs sup rieures de 5 maximum aux valeurs de sortie pr vues indiqu es sur la face avant L alimentation peut fonctionner sans dommage en d passement de gamme de 5 mais dans ces conditions il _ ne peut tre garanti que ses performances solent conformes aux sp cifications Fonctionnement sur charges Impulsives En r ponse une augmentation sup rieure la limite pr r gi e du courant de sortie l alimentation passe automatiquement du mode tension constante au mode courant constant Bien que la limite pr r gl e puisse tre sup rieure au courant de sortie moyen de forts courants de cr te comme ceux qui se produisent en fonctionnement sur charges impulsives risquent de d passer la limite de courant pr r gi e et de provoquer un changement de mode automatique Pour viter ce ph nom ne l
39. gt RES VAR 10K 5 10 TURN CERMET RES VAR 50K 5 10 TURN WW RES VAR 100K 5 10 TURN WW LUG GROUND PLATE WINDOW FRONT FRAME LABEL FRONT PANEL LABEL FRONT PANEL LABEL FRONT PANEL COPPER WIRE 22 AWG 1X22 BINDING POST RED BINDING POST BLACK KNOB NUT HEX DBL CHAM ss o N N E3610 60005 E3611 60005 E3612 60005 DISPLAY BOARD ASSY E3610 10P DISPLAY BOARD ASSY E3611 10 DISPLAY BOARD ASSY E3612 10P E3610A 53624 10000uF 50V 20 AL ELEC 4700uF 100V 20 AL ELEC 470uF 50V 20 AL ELEC 220uF 100V 20 AL ELEC 2200pF 50V 10 CER 2200pF 50V 10 CER 1000pF 500V 5 CER 1000pF 500V 5 CER 180pF 50V 5 CER 220pF 50V 5 CER BK 5 3W PWI 0 2 1 BW PWN 1 5M 5 0 125W TF 1K 5 0 125 1K 5 0 125W TF 10K 1 0 125W 10K 1 0 125W skswawp 6 19 1 0 125W 9 09K 1 0 125W 25K 1 0 1250 Tr 68 1 0125W a8 1 AE EZAK 1 0 1260 TF oon 1 0 1250 TF 5 16 TURN WW AS A C2 0 1 1 5W PWN 1 5M 5 0 125W TF 1K 5 0 125W TF 1K 5 0 125W TF JUMPER WIRE 14 3K 1 0 125W TF 100K 1 0 125W TF 2 5K 1 0 125W TF 1 1 0 125W TF 6 81K 1 0 125W TF 3 40K 1 0 125W TF 500K 1 0 125W TF 0 6 5 5W PWN 5 10 TURN WW JUMPER WIRE JUMPER WIRE COMPONENT VALUE TABLE NOTES 1 The values of all component marked are shown in the above component value table 2 All resistors are 0 125W 5 and o
40. CAP 470UF 50V 20 AL ELEC CAP 220UF 100V 20 AL ELEC CAP 100UF 250V 20 AL ELEC CAP 0 1UF 500V 20 CER CAP 2200PF 50V 10 CER 22PF 100V 5 CER CAP 330UF 35V 20 AL ELEC CAP 1000PF 500V 5 CER CAP 1UF 250V 20 AL ELEC CAP 33UF 250V 10 POLYE MET CAP 33UF 50V 10 PE CAP 1UF 50V 20 AL ELEC CAP 180PF 50V 5 CAP 220PF 50V 5 CER CAP 120PF 50V 5 CER CAP 47OUF 50V 20 AL ELEC OOUN E361XA REPLACEABLE PARTS LIST Reference HP Part JA Designation Number Qty Description 0180 3990 CAP 4700UF 25V 20 AL ELEC 0160 6071 CAP 18PF 100V 5 CER E3612A C22 23 0160 4832 CAP 0 1UF 50V 20 CER E3610A R1 0811 1806 RES 2K 5 3W PWI E3611A R1 0811 2188 RES 5K 5 3W PWI E3612A R1 0699 3105 RES 45K 5 2W MO E3610A R2 0811 3478 RES 1 1 SW PWN E3611A R2 0811 3839 RES 2 1 SW PWN E3612A R2 0811 3861 RES 1 78 1 5W PWN R3 0699 2882 RES 1 2K 1 5W TF 7 R4 25 0698 4254 RES 1K 5 125W TF R5 0898 4002 E3610A 11A 0899 3266 E3612A R6 8150 4920 E3610A 11A R8 0698 4254 E3612A R8 0698 4002 E3610A 11A R10 0698 4254 E3612A R10 38 39 0757 0398 E3611A 12A R11 12 0757 0442 E3610A R12 8150 4920 E3610A 11A R13 0813 0001 E3612A 813 0811 2188 R14 0698 4254 E3610A R15 0698 4307 E3611A R15 0757 0290 E3612A R15 0811 3873 0698 4278 0699 1063 E3610A R18 0698 8020 E3611A 12A R18 0757 0288 R20 2100 4306 E3610A 11A R22 23 0698 6250 E3612A R22 23 0757 0440 R24 0698 4009 E
41. Current E3610A 10 mA E3611A 10 mA E3612A 1 mA DOWN PROGRAMMING SPEED Maximum time for output voltage to change between 100 to 0 1 of maximum rated output voltage at NO LOAD condition E3610A maximum 2 5 sec 3611A maximum 1 0 sec E3612A maximum 1 5 sec RESOLUTION Minimum output voltage or current change that can be obtained using panel controls E3610A Voltage 10 mV Current 5 mA E3811A Voltage 10 mV Current 5 mA E3612A Voltage 100 mV Current 2 mA COOLING Convection cooling is employed WEIGHT 8 4 1bs 3 8 Kg net 9 3 Ibs 4 2 Kg shipping NOTE SUPPLEMENTAL CHARACTERISTICS 3 469 in 2692 _ 2123 mm 8 354 n 10 591 in FIGURE 1 OUTLINE DIAGRAM Options The following factory installed options are available with this instrument Option Description OE3 Input Power 230 Vac 10 47 63 Hz Single Phase 9 Input Power 100 Vac 10 47 63 Hz Single Phase Instrument Identification Hewlett Packard power supplies are identified by one serial number The letter KR designates Korea as the country of manufacture the first digit indicates the year 1 91 2 92 etc the second two digits indicate the week and the last five digits of the serial number are a different sequential number assigned to each power supply If the serial number on your instrument does not agree with those on the title page of this manual a yellow change sheet may be included if a design
42. Entwick lungsumgebungen Alle Informationen in dieser Anleitung beziehen sich wenn nicht anders angegeben auf alle drei Modelle Der gew nschte Ausgangsbereich kann durch die RANGE Taste auf der Frontplatte bestimmt werden Ausgangsspannung bzw strom lassen sich kontinuierlich in beiden Bereichen einstellen Geh use nicht ffnen Ger teabdeckungen d rfen nicht vom Bedienungspersonal entfernt werden Wartungs und Reparaturarbeiten sind nur qualifiziertem Service Personal vorbehalten Sicherheits Symbole Ger tesymbol das Ger t ist mit diesem Symbol versehen wenn die Benutzung der Bedienungs anleitung notwendig ist Steht f r Geh usemasse Das Zeichen WARNUNG weist auf eine Gefahr hin Es bezieht sich auf Arbeitsweisen Anwendungen die bei falscher Ausf hrung zu Verletzungen des Bedieners f hren k nnen Fahren Sie nur mit Ihrer Arbeit fort wenn Sie den Sach verhalt und alle erforderlichen Ma nahmen verstanden haben Das Zeichen ACHTUNG weist auf eine Gefahr hin Es bezieht sich auf Bedienungsschritte oder T tig keiten deren falsche Ausf hrung zu einer Besch digung oder zur Zerst rung des Netzger tes f hren kann Fahren Sie nur dann mit Ihrer Arbeit fort wenn Sie den Sach verhalt und alle erforderlichen Ma nahmen verstanden haben Der VOLTAGE Regler auf der Frontplatte dient weiterhin zur Festlegung des Spannungsgrenzwertes wenn das Netz ger t als Konstantstromquelle
43. RANGO TEMPERATURA O a 40 para salida indicada total Corriente derate 1 por grado entre 40 C 55 C COEFICIENTE TEMPERATURA Tensi n Constante Menos de 0 02 m s 1 mV por grado C Corriente Constante Menos de 0 02 m s 2 mA por grado C TIEMPO DE RESPUESTA TRANSITORIO Menos de 50 usec para recuperaci n de salida en 10 mV siguiendo un cambio en corriente de salida desde carga total a media carga o viceversa AISLAMIENTO 240 Vdc DERIVACION DE SALIDA Tensi n Constante Menos de 0 1 m s 5 mV de deriva ci n total para 8 horas tras un calentamiento inicial de 30 minutos Corriente Constante Menos de 0 1 m s 10 mA de derivaci n total para 8 horas tras un calentamiento inicial de 30 minutos PRECISION DEL CONTADOR 0 5 2 contados a 25 C 5 C PROTECCION DE SOBRECARGA Un circuito de corriente constante que act a continuamente proteje la fuente de alimentaci n de cualquier sobrecarga incluyendo un cortocircuito directo en los terminales 5 3 El circuito de voltaje constante limita el voltaje de salida en operaci n de corriente constante TERMINALES DE SALIDA Se proporcionan tres terminales de salida en el panel frontal Est n aislados del chasis y tanto el teminal positivo como el negativo pueden conectarse al terminal de tierra CARACTERISTICAS DE SALIDA Pour MAX 30 Watts Current NOTA Los voltajes de salida mayores de V est n posible mente a corriente baja cua
44. a E3610A Vot 15 V loi 2 E3611A Vo1 35 20 V 101 0 85 A loz 1 5 A E3612A Vo1 120 V 60 V loi 0 25 02 0 5 RISOLUZIONE MISURE Tensione E3610A 10 mV E3611A 100 mV E3612A 100 mV E3610A 10 mA E3611A 10 mA E3612A 1 mA Corrente VELOCITA MINIMA DI PROGRAMMAZIONE Periodo di tempo massimo per effettuare una variazione di tensione nominale di uscita da 100 a 0 1 alla condizione di NESSUN CARICO E3610A massimo 2 5 sec E3611A massimo 1 0 sec E361 2A massimo 1 5 sec RISOLUZIONE Variazione di tensione o corrente minima di uscita ottenuta utilizzando i comandi sul pannello E361 tensione 10 mV corrente 5 mA E3611A tensione 10 mV corrente 5 mA E361 2A tensione 100 mV corrente 2 mA RAFFREDDAMENTO utilizzato il raffreddamento per convezione PESO 8 4 Ibs 3 8 Kg netti 9 3 Ibs 4 2 Kg con imballo NOTE ALTRE CARATTERISTICHE 3 469 in 10 591 in HNW III 12 534 FIGURA 1 SCHEMA Opzioni Lo strumento esce di fabbrica con i seguenti parametri preimpostati Opzione Descrizione OE3 Alim Ingresso 230 Vac 10 47 63Hz Monofase OE9 Alim Ingresso 100 Vac 10 47 63Hz Monofase Identificazione degli strumenti Gli alimentatori HP sono contraddistinti da un numero di serie Il prefisso KR indica il paese di fabbricazione del l alimentatore in questo caso la Corea mentre
45. betrieben wird Entsprechend dient der CURRENT Regler zur Einstellung des Stromgrenz wertes wenn das Netzger t als Konstantspannungsquelle betrieben wird Mit Hilfe der CC SET Taste l t sich der Stromgrenzwert einfach und bequem einstellen ohne die Ausg nge kurzschlie en zu m ssen In der Frontplatte ist ein digitales Voltmeter Amperemeter untergebracht Eine 3 1 2 Stellen E3611A 3 Stellen Spannungsanzeige und eine 3 Stellen Stromanzeige geben genau die Ausgangsspannung und entsprechend den Ausgangsstrom an Die Ausgangsdaten jedes Modells sind in der Tabelle Technische Daten aufgef hrt Technische Daten EINGANGS DATEN 115 Vac 10 47 63 Hz 0 8 A 70 W 100 Vac 110 47 63 Hz 0 8 A 70 W 230 Vac 10 47 63 Hz 0 4 A 70 W E3610A Obis 8 V O bis 3 A oder O bis 15 V O bis 2 A bis 20 V bis 1 5 A oder 0 bis 35 V 0 bis 0 85 A bis 60 V bis 0 5 A oder O bis 120 V O bis 0 25 A AUSGANGS DATEN E361 1A E3612A LASTREGELUNG Konstantspannung Weniger als 0 01 plus 2 mV bei einem Wechsel von Vollast auf Nullast bezogen auf Strom K nstantstrom Weniger als 0 01 plus 1 mA bei einem Wechsel von Null auf maximale Spannung NETZREGELUNG Konstantspannung Weniger als 0 01 plus 2 mV bei jeder Netzspannungs nderung innerhalb des zul ssigen Bereichs Konstantstrom Weniger als 0 01 plus 1 mA bei jeder Netzspannungs nderung innerhalb des zul ssigen Bereichs WELLIGKEIT
46. line through a variable autotransformer which is set for low line voltage 104 Vac for 115 Turn the unit s power on and turn CURRENT control fully clockwise d Turn up output voltage to the full rated value as read on the digital voltmeter 6 e Record the output voltage at the digital voltmeter f Adjust autotransformer to high line voltage 127 Vac for i 115 Vac g When the reading settles record the output voltage again Check that the two recorded readings differ no more than 0 01 of output voltage plus 2 mV Load Transient Recovery Time Definition This is the time for the output voltage to return to within a specified band around its voltage following a step change in load Test Parameter Measured Variable Output Voltage Transients Expected Results Less than 50 usec at 10 mV from base line Test Procedure a Connect the test equipment as shown in Figure A 2 but replace the DVM with the oscilloscope Operate the electronic load in constant current mode b Turn the unit s power on and turn CURRENT control fully clockwise c Turn up output voltage to the full rated value feno U U 1 U CE 100 000 us 20 0 us div Vmarker2 1 7 813 mV Vaarkeric 1 2 188 mV delta V 1 gt 10 001 mV stop marker start marker delta t 1 delta t d Set the electronic load to transient operation mode between one half of unit s full rated value and unit s full rated va
47. picco 10Hz 10MHz TEMPERATURE min max da 0 a 40 C per uscita con piene prestazioni Scadimento dell 1 delle prestazioni a temperature fra 40 e 55 C COEFFICIENTE TEMPERATURA Tensione costante Inferiore a 0 02 pi 1mV per grado centigrado Corrente costante Inferiore a 0 02 pi 2mA per grado centigrado TEMPO RISPOSTA TRANSIENTE Meno di 50 usec per il recupero dell uscita entro 10mV in seguito a una variazione della corrente di uscita da pieno carico a mezzo carico viceversa ISOLAMENTO 240 Vdc DERIVA DI USCITA Tensione costante Inferiore a 0 1 pi 5mV deriva totale per 8 ore dopo un riscaldamento di 30 minuti Corrente costante Inferiore a 0 1 pi 10mA deriva totale per 8 ore dopo un riscaldamento di 30 minuti PRECISIONE MISURE 0 5 2 a 25 C 5 C PROTEZIONE DA SOVRACCARICO Un circuito a corrente costante protegge l alimentatore contro il rischio di sovraccarichi incluso il corto diretto sui terminali circuito a tensione costante limita la tensione di uscita nel funzionamento a corrente costante TERMINALI DI USCITA Sul pannello frontale sono presenti tre terminali di uscita isolati dallo chassis sia quello positivo che quello negativo possono essere collegati al terminale di terra CARATTERISTICHE DI USCITA Pour MAX 30 Watts Carrent NOTA Quando viene impostato un alto range di valori a bassa corrente sono possibili tensioni di uscita superiori
48. the instrument Hewlett Packard Company assumes no liability for the customer s failure to comply with these require ments Before Applying Power Verify that the product is set to match the available line voltage Ground The Instrument This product is a Safety Class instrument provided with a protective earth terminal To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground The instrument must be connected to the power supply mains through a three conductor power cable with the third wire firmiy connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury If the instrument is to be energized via an external autotransformer for voltage reduction be certain that the autotransformer common terminal is connected to the neutral earthed pole of the ac power lines supply mains Do Not Operate In An Explosive Atmosphere Do not operate the instrument in the presence of flammabie gases or fumes GENERAL INFORMATION Description This operating and service manual covers three dual range HP power supplies E3610A E3611A and E3612A All models are compact genera purpose bench supplies that are particularly useful for powering developmental IC circuits both linear and digital Unless stated other
49. um St rungen zu unterdr cken Falls eine Abschirmung verwendet wird so verbinden Sie ein Ende mit dem Masseanschlu des Netzger tes und lassen das andere Ende offen Betrieb im Grenzbereich Das Netzger t kann problemlos bis zu 5 oberhalb der spezifizierten Ausgangsspannung strom eingestellt und betrieben werden In diesem Uberbereich k nnen jedoch m glicherweise einzelne Spezifikationen nicht mehr eingehalten werden Impulsf rmige Lasten Bei einem Anstieg des Ausgangsstromes oberhalb des eingestellten Grenzwertes schaltet das Netzger t automatisch vom Konstantspannungsbetrieb in den Konstantstrombetrieb Obwohl der eingestellte Grenzwert h her liegen kann als der mittlere Ausgangsstrom k nnen Stromspitzen wie sie bei impulsf rmigen Lasten auftreten den eingestellten Stromgrenzwert berschreiten und ein Umschalten in den Konstantstrombetrieb bewirken Falls dieses Umschalten unerw nscht ist sollte der Stromgrenzwert auf den m glichen Stromspitzenwert eingestellt werden Kapazitive Lasten Ein interner Ausgangskondensator unterst tzt die Stromabgabe bei kurzzeitigen Stromimpulsen im Konstantspannungsbetrieb Jede zus tzliche Kapazit t am Ausgang verbessert zwar das Stromverhalten ver schlechtert jedoch das Begrenzungsverhalten der Konstantstromschaltung So kann beispielsweise ein Stromimpuls eine angeschlossene Last besch digen bevor der mittlere Ausgangsstrom erreicht ist und die Strom begrenzung wi
50. voltage source The CC SET push button allows the current limit value to be conveniently set using the CURRENT control without shorting the output The front panel inciudes a digital voltmeter ammeter A 3 1 2 digit E3611A 3 digit voltage display and 3 digit current display accurately show the output voltage and current respectively The output ratings for each model are shown in the Specifications Table Specifications and Supplemental Characteristics INPUT 115 10 47 63 Hz 0 8 A 70 W 100 10 47 63 Hz 0 8 A 70 W 230 10 47 63 Hz 0 4 A 70 W OUTPUT E3610A Oto8V 0t03AorOto 15 V Oto2A E3611A Oto 20 O to 1 5 A or O to 35 V O to 0 85 A E3612A Oto 60 V O to 0 5 A or O to 120V to 0 25 A LOAD REGULATION Constant Voltage Less than 0 01 plus 2 mV for a full load to no load change in output current Constant Current Less than 0 01 plus 1 mA for a zero to maximum change in output voltage LINE REGULATION Constant Voltage Less than 0 01 plus 2 mV for any line voltage change within the input rating Constant Current Less than 0 01 plus 1 mA for any line voltage change within the input rating RIPPLE AND NOISE Constant Voltage Less than 200 uV rms and 2 mV peak to peak 10 Hz 10 MHz Constant Current Less than 200 uA rms and 1 mA peak to peak 10 Hz 10 MHz TEMPERATURE RANGE 0 to 40 C for full rated output Derate current 1 per degree C between 40 C 55 C TEMPE
51. will not light until the supply is loaded Connecting Loads The output of the supply is isolated from earth ground Either output terminal may be grounded or the output can be fioated up to 240 volts off ground Each load should be connected to the power supply output terminals using separate pairs of connecting wires This will minimize mutual coupling effects between loads and will retain full advantage of the low output impedance of the power supply Each pair of connecting wires should be as short as possible and twisted or shielded to reduce noise pickup if a shield is used connect one end to the power supply ground terminal and leave the other end unconnec ted Operation Beyond Rated Output The output controls can adjust the voltage or current to values abovelup to 5 the rated output as indicated on the front panel display Although the suppiy can be operated in the 5 overrange region without being damaged it can not be guaranteed to meet all of its performance specifications in this region Pulse Loading Considerations The power supply will automatically cross over from constant voltage to constent current operation in response to an increase over the preset limit in the output current Although the preset limit may be set higher than the average output current high peak currents as occurin pulse loading may exceed the preset current limit and cause crossover to occur If this crossover limiting is not desired set t
52. 1 10 W load resistance changes from open circuit to full load or from full load ELECTRONIC to open circuit LOAD Test Parameters Measured Variable Output Voltage Expected Results Less than 0 01 plus 2 mV Figure A 2 Basic Test Setup Test Procedure Connect the test equipment as shown in Figure 2 Operate the electronic load in constant current mode and set its current to the full rated value of the power supply E3610A Source Effect Line Regulation 3 0 A E3611A 1 5 E3612A 0 5 A Definition Source effect is the change in dc output voltage when the b Turn the unit s power on and turn CURRENT control fully ac input voltage changes from a minimum to maximum value 10 clockwise of nominal voltage c Turn up output voltage to the full rated value E3610A 8 V E3611A 20 V E3612A 60 V as read on the digital Test Parameter voltmeter Measured Variable Output Voltage d Record the output voltage at the digital voltmeter Expected Results Less than 0 01 plus 2 mV e Operate the electronic load in Open Input Off mode f When the reading settles record the output voltage again Test Procedure Check that the two recorded readings differ no more than a Connect the test equipment as shown in Figure A 2 Operate 0 01 of output voltage plus 2 mV the electronic load in constant current and set current to the full rated value of power supply b Connect the unit to the ac power
53. 1558 178 B Edie 2 3 2 a LINE
54. 3610A R27 0698 8812 E3611A 827 0699 3200 E3612A R27 8150 4920 E3610A 11A 828 0757 0439 E3612A R28 0757 0290 R29 30 0781 0021 R31 32 2100 4305 E3610A 833 0698 4440 E3611A R33 0698 0063 E361 2 R33 0698 4471 E3610A R34 0698 8957 E3611A R34 0698 8825 E3610A R35 36 0811 3864 E3611A R35 36 0811 3874 361 2A R35 36 0811 3886 0698 4531 0698 3155 E3612A R43 0698 8020 3612 R44 45 0698 3160 2110 0665 0699 2715 1826 0961 1826 0147 1826 1297 1826 1075 1826 0412 1826 0221 1826 0144 1853 0041 1854 0477 1908 0255 1901 0848 1901 0461 1901 0033 1901 0327 1906 0284 0360 2359 0515 0911 0515 0918 RES 5K 1 125W RES 1 5M 5 125W TF JUMPER WIRE 22AWG 1X2 RES IK 5 125W TF RES 5K 1 125W TF RES 1K 5 125W RES 75 1 125W TF RES 10K 1 125W JUMPER WIRE 22AWG 1X22 RES 1K 5 3W PWI RES 5K 5 3W PM RES 1K 5 125W RES 14 3K 1 125W 4 RES 6 19K 1 125W lt RES 3 65K 1 3W PWN RES 10K 5 125W RES 900K 1 125W RES 100K 1 125W RES 9 09K 1 125W TF RES TMMR 50K 10 25T RES 2 5K 1 125W TF RES 7 5K 1 125W TF RES 50K 1 125W RES 1 1 125W TF RES 6 8 1 125W JUMPER WIRE 22AWG 1X22 RES 6 81K 1 125WTF RES 6 19K 1 125W TF RES 1K 5 1W MO RES TMMR 10K 10 25T RES 3 40K 1 125W TF RES 5 23K 1 125W TF RES 7 15K 1 125W TF RES 500K 1 125W TF RES 681K 1 125W TF RES 6 5 5W PWN RES 1 2 5 5W PWN RE
55. ELLO FRONTALE FUNZIONAMENTO Controllo all accensione La procedura che segue prevede fuso dei comandi e degli indicatori del pannello frontale riportati nella figura 2 per mette di verificare il corretto funzionamento dell alimentatore Premere su ON il pulsante LINE b Regolare il pulsante RANGE sul valore desiderato c Ruotare ia manopola VOLTAGE tutta in senso antio rario verso il valore 0 Vdc poi tutta in senso orario per portaria alla massima uscita d Tenendo premuto il tasto CC SET ruotare la mano pola CURRENT tutta in senso antiorario e poi tutta in senso orario per passare dal valore minimo a quello massimo e Collegare il carico ai terminali di uscita ATTENZIONE Folgorazione Scollegare l alimentazione prima di eseguire i collegamenti con i terminali Funzionamento a tensione costante Per selezionare l opzione di uscita a tensione costante per l alimentazione delle operazioni a Accendere l alimentatore e regolare la manopola VOLTAGE sull uscita desiderata terminali di uscita aperti Si accender il LED CV b Tenendo premuto il tasto CC SET regolare la mano pola CURRENT 1 0 regolazioni sulla massima uscita consentita limite di corrente Durante il funziona mento se una variazione di carico causa il supera mento del limite di tensione l alimentatore passa au tomaticamente nella modalit a corrente costante e la tensione di uscita si riduce proporzionalmente 6 5 Funzionamento
56. Goreway Drive Mississauga Ontario LAV1M8 416 678 9430 Australia New Zealand Hewlett Packard Australia Ltd 31 41 Joseph Street Blackburn Victoria 3130 Melbourne Australia 03 895 2895 Europe European Headquarters Hewlett Packard S A 150 Route du Nant d Avril 1217 Meyrin 2 Geneva Switzerland 41 22 780 8111 Far East Hewlett Packard Asia Ltd 89 Queensway Central Hong Kong 5 8487777 Korea Samsung Hewlett Packard Company 36 1 Yoido dong Youngdeungpo gu Seoul Korea 02 784 2666 Japan Yokogawa Hewlett Packard Ltd 15 7 Nishi Shinjuku 4 Chome Shinjuku ku Tokyo 160 Japan 03 5371 1351 Latin America Latin American Region Headquarters Monte Pelvoux Nbr 111 Lomas De Chapultepec 11000 Mexico D F Mexico 525 202 0155 Middle East and Africa Geneva Switzerland 41 22 780 7111 For all other areas Hewlett Packard Company Intercontinental Headquarters 3495 Deer Creek Road Palo Alto CA 94304 U S A HEWLETT UN PACKARD 5959 5304
57. HP E3611A Serie KR20600101 y anteriores HP E3612A Serie KR20600101 y anteriores Tabla de Contenidos RESUMEN DE SEGURIDAD _ 5 2 INFORMACION GENERAL 5 2 Descripci n 5 2 Especificaciones y Caracteristicas 5 3 Opciones 5 4 Identificaci n del Aparato 5 4 INSTALACION 5 4 Inspecci n 5 4 Ubicaci n y Refrigeraci n 5 4 Requisitos de Potencia de Entrada 5 4 Cable de Red 5 4 OPERACION 5 5 Verificaci n de Secuencia de Encendido del Instrumento 5 5 Operaci n en Modo de Tensi n Constante 5 5 Operaci n en Modo de Corriente Constante 5 5 Cargas de Conexi n 5 5 Operaci n Bajo Salida Nominal 5 5 Impulso de Carga 5 6 Cargas Capacitivas 5 6 Carga de Corriente Inversa 5 6 INFORMACION DE SERVICIO A 1 de Parte del Manual 5959 5304 Impreso Febrero 1992 N de Parte de la Microficha 5959 5307 RESUMEN DE SEGURIDAD Las siguientes precauciones de seguridad generales se deben observar durante todas los fases de funcionamiento servicio y reparaci n de este instrumento EI fallo en el cumplimiento de estas precauciones o avisos espec ficos en cualquier parte de este manual infringe las normas de seguridad de dise o fabricaci n y uso propuesto de este instrumento Hewlett Packard Company no asume la responsabilidad del incumplimiento de estos requisitos Antes de Conectar a la Red Compruebe que el equipo est preparado para soportar el voltaje de red disponible Conecte a Tierra el Aparato Este producto es un instrumento de Seg
58. RATURE COEFFICIENT Constant Voltage Less than 0 02 plus 1 mV per degree Constant Current Less than 0 02 plus 2 mA per degree C TRANSIENT RESPONSE TIME Less than 50 usec for output recovery to within 10 mV following a change in output current from full load to half load or vice versa ISOLATION 240 OUTPUT DRIFT Constant Voltage Less than 0 1 plus 5 mV total drift 8 hours after an initial warm up of minutes Constant Current Less than 0 1 plus 10 mA total drift for 8 hours after an initial warm up of 30 minutes METER ACCURACY 0 5 2 counts at 25 5 OVERLOAD PROTECTION A continuously acting constant current circuit protects the power supply for all overloads including a direct short placed across the terminals The constant voltage circuit 1 3 limits the output voltage in constant current operation OUTPUT TERMINALS Three output termina s are provided on the front panel They are isolated from the chassis and either the positive or negative terminal may be connected to the ground terminal OUTPUT CHARACTERISTICS Pour MAX 30 Watts NOTE Output voltages higher than Vo are possible at low current when the high current range is selected E3610A Vo 15 V Vo2 8 V lo1 2A lo2 3 A E3611A Vo 35 Vo2 20 V 161 0 85 lo2 1 5 A E3612A Vo 120 V V 60 V lg 0 25 loz 0 5 A METER RESOLUTION Voltage E3610A 10 mV E3611A 100 mV E3612A 100 mV
59. S 10 1 3W PWN RES 267K 1 125W TF RES 4 64K 1 125W TF RES 100K 1 125W TF RES 31 6K 1 125W TF FUSE 1A 125V FUSIBLE RES 1 OHM 5 5W IC LF41 1 CN OP AMP LF411CN IC V RGLTR FXD11 5 12 5 TO 220 MC781 2CT IC LM336BZ5 0 V RGLTR TO 92 LM336BZ IC LF442CN OP AMP DUAL 8 DIP P LF442CN IC 393 8 DIP P PKG LM393N IC MC791 2CT V RGLTR TO 220 MC7912CT IC MC 7805CT V RGLTR TO 220 MC7805CT XSTR PNP SI XSTR NPN 2N2222A SI TO 18 2N2222A DIODE FW BRDG 600V 6A KBPC606 DIODE PWR RECT 400V 3A MR854 DIODE GEN PRP 10V 2A 1N4148 DIODE GEN PRP 180V 2A 1N645 DIODE PWR RECT 200V 1A DIODE FW BRDG 100V 1A TERMINAL TEST POINT SCREW MACH M3X0 5 SCREW MACH M3 5X0 6 1 1 2 1 1 1 1 1 1 1 2 1 1 1 1 1 1 3 2 1 1 1 1 1 1 1 2 1 1 1 1 2 2 1 1 1 1 1 1 2 2 1 1 1 1 1 2 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 1 2 1 1 2 4 1 2 1 1 3 E361XA REPLACEABLE PARTS LIST E3610A 11A 1205 0595 J1 1251 7406 2190 0684 2190 0585 E3610A 11A 5002 0202 u 9170 0894 E3612A JP1 8150 4920 E3610A 11A JP2 8150 4920 HEAT SINK SGL PLSTC CONNECTOR POST TYPE 10P WSHR LK M3 0 ID WSHR LK M3 5 ID HEAT SINK BRIDGE DIODE CORE SHLD BEAD JUMPER WIRE 22AWG 1X22 JUMPER WIRE 22AWG 1X22 D m m E361X 60003 R19 2100 4503 E3610A 11A R37 2100 4308 E3612A R37 2100 4307 5002 0203 5021 8104 5041 8601 E3610 80001 E361 1 80001 E3612 80001 8151 0013 1510 0135 1510 0136 0370 3222 2950 0144 FRONT PANEL ASSY 6
60. SHING SCR MACH M4X0 7 SCR MACH M5X0 8 SCR MACH M3 5X0 6 NUT HEX DBL CHAM M3 5X0 6 CABLE TIE XSTR NPN 2N6055 SI DARL TO 3 XSTR NPN BU323A SI DARL TO 3 XSTR MOSFET IRF440 N CHAN TO 3 WSHR LK M3 5 ID WSHR LK M4 0 ID WSHR LK M5 0 ID WSHR FL MTLC 5 0 SW PB 6A 250V SW PB DPST 4A 250V SW PB 5A 250VAC TRANSFORMER E3610A 115V TRANSFORMER E3610A 100V TRANSFORMER E3610A 230V TRANSFORMER E3611A 115V TRANSFORMER E3611A 100V TRANSFORMER E3611A 230V TRANSFORMER E3612A 115V 9100 4995 TRANSFORMER E3612A 100V 9100 4994 TRANSFORMER E3612A 230V 0890 1788 SLEEVING FLEXIBLE 5062 3403 WIRE HARNESS ASSY DISPLAY 0470 0357 3 SILICONE RUBBER RTV 0890 1788 SLEEVING FLEXIBLE a a A a m OO N NN NNN ANNON 5062 3401 0360 0268 0515 0910 1252 4214 E361XA STD OE9 F4 2110 0702 E361XA 0E3 F4 2110 0599 5021 8105 HEAT SINK ASSY TERM SOLDER LUG SCR MACH M4X0 7 CONNECTOR AC POWER FUSE 2A 250V NTD FUSE 250V 1A HEAT SINK DIECASTING E361X 60002 C1 0160 7077 E3610A C2 0180 4352 E3611A C2 0180 4361 E3612A C2 0180 4351 E3610A C3 0180 4355 0180 3595 0180 3937 0160 0269 E3610A 11A C6 0160 7548 E3612A C6 0160 4787 C7 0180 4085 E3610A 11A 610 0160 7547 0160 3585 0160 6225 0160 7449 0180 3970 0160 7456 E3611A C12 0160 7080 E3612A C12 0160 7082 13 0180 4355 MAIN BOARD ASSY CAP 0 1UF 630V 10 POLYE MET CAP 10000UF 50V 20 AL ELEC CAP 4700UF 100V 20 AL ELEC CAP 1000UF 250V 20 AL ELEC
61. T A RS AFR Ae PI BEM AE wst a AE shielasa a ER Ee IB Fr et TR ER file Mi EBT EAER EE CAER ATA NBA EA OE Sole BE BERRA MAENE ERER E UR FIERA era Ere Al HAB ROTAR DAR MRA RE MVEA T IAG 8 6 LAIA AER ERBE TERRA AU active load 8 AED ARA ERBE ERBE Era BERDEWNRKAE LUE dummy load resisto EREHE a EPH CEREA SS MEA APPENDIX SERVICE INFORMATION RECTIFIER ALTER Figure 1 Block Diagram PRINCIPLES OF OPERATION Thro
62. TAGE de 10 vueltas para el voltaje de salida deseado terminales de salida abiertos Deberia encenderse CV LED b Mientras pulsa la tecla CC SET ajuste el control CURRENT de 10 vueltas para la salida maxima de corriente limite de corriente Durante la operaci n actual si un cambio de carga hace que se sobrepase el limite de corriente la fuente de alimentaci n pasar automaticamente al modo de corriente constante y el voltaje de salida bajara proporcionalmente 5 5 Operaci n en Modo de Corriente Constante Para configurar una fuente de alimentaci n para la opera ci n a corriente constante haga lo siguiente a Gire la tecla de control CURRENT completamente en sentido contrario a las agujas del reloj para asegurarse de que la salida se reduce a O A y despu s encienda la fuente de alimentaci n Ajuste la tecla de control VOLTAGE no conecte la carga para un voltaje de salida m ximo l mite de tensi n como se determina en las condiciones de carga Durante la operaci n actual si un cambio de carga provoca que el l mite de voltaje se exceda la fuente de alimentaci n pasar automaticamente a operaci n en modo de voltaje constante en el l mite de voltaje presente y la corriente de salida bajar proporcionalmente Ajuste la tecla de control CURRENT para la corriente de salida deseada mientras pulsa la tecla CC SET CC LED no se iluminar hasta que la fuente se cargue Cargas de Conexi n La salida de la fuen
63. TT E3610A PACKARD DC POWER SUPPLY 1AMPS 15 5 B 178 pe ON OFF LJ 0 8 0 15V 24 VDC MAX TO 1 2 MERA TIA BARRE HE 2 DE A RIMA AJ ILS LINE SEE ON b 7 RANGE EN c VOLTAGE FERIEN ok 24 WIER ET VOL Mn d CC SET SR A fe ER fey hy en LA BAERS RFE RATTA E el ERER TER EMMA i 25 GE dE ZA AC RE GB JE tit ir aS ET TEENS en e a VOLTAGE ll A FR A akite H sHiE EE B LED FEAR aiz b CC SLT 10 Rs CURRENT IE fh FRA HEBD En BS a En ay Ma RE Boara SAEN 20588 AR il D 8 5 UE IRE As SB ES AAS n O CURRENT FE ERBE HE i LPA A VOLTAGE EB RAT FIDATA E BERE Eis Eh AA TE lt CMB 3 MALE SAA FIAS PEE tb e Ez qa EB c Hye F SET Bf at CC LED AAA AREA gt 1 CURRENT ASR BST Bop nr EA FOREN A ILES HEIN 240 V PIBE 129 B fERREN AE WER EL 2856 EE RD E ZIEHEN A FE IR ARES MO
64. Test Setup PARDIPeak to Peak Measurement Test Parameter Measured Variable Output voltage peak to peak Expected Results Less than 2 mV p p Test Procedure a Connect the test equipment as shown in Figure A 5 b Turn the unit s power on and turn CURRENT control fully clockwise Turn up output voltage to the full rated value Check that the unit s CV Indicator remains lighted Reduce VOLTAGE control if not lighted d Set the oscilloscope to AC mode and bandwidth to 10 MHz e Check that the peak to peak noise is no more than 2 mV POWER SUPPLY UNDER TEST DIFFERENTIAL OSCILLOSCOPE E3612A 120 ohm Figure A 5 Peak to Peak Measurement Test Setup Constant Current CC Tests For output current measurements the current sampling resistor must be treated as a four terminal device In the manner of a meter shunt the load current is fed to the extremes of the wire leading to the resistor while the sampling terminals are located as close as possible to the resistance portion itself Generally any current sampling resistor should be of the low noise low temperature coefficient type and should be used at no more than 5 of its rated power so that its temperature rise will be minimized Load Effect Load Regulation Definition CC Load Effect is the change in dc output current when load resistance changes from short circuit to full load or from full load to short circuit Test Parameter Measured Variable Ou
65. Ur HEWLETT PACKARD CERTIFICATION Hewlett Packard Company certifies that this product met its published specifications at time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Bureau of Standards to the extent allowed by the Bureau s calibration facility and to the calibration facilities of other International Standards Organization members WARRANTY This Hewlett Packard hardware product is warranted against defects in material and workmanship for a period of three years from date of delivery HP software and firmware products which are designated by HP for use with a hardware product and when properly installed on that hardware product are warranted not to fail to execute their programming instructions due to defects in material and workmanship for a period of 90 days from date of delivery During the warranty period either HP or Hewlett Packard Company will at its option either repair or replace products which prove to be defective HP does not warrant that operation the software firmware or hardware shall be uninterrupted or error free For warranty service with the exception of warranty options this product must be returned to a service facility designated by HP Return to Englewood Colorado Service Center for repair in United States 1 800 258 5165 Customer shall prepay shipping charges by and shall pay all duty and taxes for products retu
66. a a terra dello strumento i l prodotto uno strumento della Classe di sicurezza cio dotato di un connettore di terra protettivo Per ridurre al minimo il rischio di folgorazioni collegare lo chassis e il contenitore dello strumento alla presa di terra Lo strumento va collegato alla prese di corrente alternata con un cavo di alimentazione a tre poli il terzo dei quali saldamente colle gato a una presa dj terra Qualsiasi interruzione nel con duttore protettivo di messa a terra o scollegamento del cavo di terra pu aumentare il rischio di folgorazione Se lo strumento alimentato con un autotrasformatore per la ri duzione della tensione importante verificare che il mor setto comune di quest ultimo sia collegato al polo di messa a terra Non usare lo strumento in ambienti saturi di gas esplosivi Lo strumento non deve essere fatto funzionare in presenza di gas o fumi infiammabili GENERALIT Descrizione Questa guida operativa si rivolge agli utenti dei tre alimen tatori HP E3610A E3611A e E3612A Tutti e tre i modelli sono compatti di impiego generale e sono particolarmente utili nell alimentazione dei circuiti integrati sia lineari che digitali Ameno che non sia specificato diversamente tutte le informazioni contenute in questo manuale si riferiscono a tutti e tre i modelli valori di uscita desiderati vengono selezionati con il pul sante RANGE sul pannello frontale L uscita pu essere re golata
67. a corrente costante Per selezionare l opzione di uscita a corrente costante per l alimentazione delle operazioni a Ruotare la manopola CURRENT tutta in senso antio rario per regolare l uscita di tensione sul valore 0A e quindi attivare l alimentatore b Regolare la manopola VOLTAGE nessun carico col legato sulla massima corrente di uscita consentita stabilita dalle condizioni di carico Se durante il fun zionamento una variazione del carico provoca il su peramento del limite di tensione l alimentatore passa automaticamente nella modalit a tensione costante al valore di tensione prefissato e la corrente di uscita diminuisce in proporzione c Regolare la manopola CURRENT sul valore di tensione desiderata tenendo premuto il tasto CC SET il CC LED non si accender finch l alimentatore non caricato Collegamento del carichi L uscita dell alimentatore isolata dalla terra possibile mettere a terra il terminale di uscita o alzare l uscita a 240 volt rispetto al valore di terra Tutti i carichi devono essere collegati ai terminali di uscita dell alimentatore utilizzando coppie separate di Ci riduce al minimo gli effetti del mutuo accoppiamento fra i carichi e conserva i vantaggi della bassa impedenza del l alimentatore Le coppie di cavi di connessione devono essere il pi corti possibile e ritorti o schermati per ridurre i disturbi se si usa una schermatura collegare un estremo al terminale di terra
68. anel is equal to DVM value divided by R Calibration in Low Current Range a Set RANGE push button to low current range b Adjust R32 so that DVM indicates exactly as follows 5 over rated current E3610A 0 21 V E3611A 0 089 E3612A 0 026 V Calibration of VOLTS Meter a Disconnect the current shunt R and connect DVM across output of supply b Set RANGE push button to low current range at no load Adjust VOLTAGE control till DVM indicates exactly as follows full rated voltage E3610A 15 V E3611A 35 E3612A 120 V d Adjust R1O on the display board so that the value of the front panel display is the same as the value of DVM E361XA REPLACEABLE PARTS LIST E361XA E361XA POWER SUPPLY 0403 0424 BUMPER FOOT ADH MTG 5041 8602 REAR CAP 5041 8603 TOP COVER 5041 8604 BOTTOM COVER 0371 3806 KEY CAP WH 0371 3807 KEY CAP GRANITE 5959 5304 OPERATION AND SERVICE MANUAL E361XA STD OE9 8120 1378 POWER CORD OPT903 E361XA 8120 1689 POWER CORD OPT902 9220 4867 PAD PACKAGING FRONT 9220 4868 PAD PACKAGING REAR ho u m m m NY E361X 60001 0340 0140 0340 0168 0515 0926 0515 1182 0515 1711 0535 0007 1400 0307 E3610A 01 3 1854 0611 E3611A 01 3 1854 1257 E3612A 01 3 1855 0536 2190 0585 2190 0586 2190 0587 3050 0894 3101 3070 3101 2985 3101 3115 9100 4959 9100 4958 9100 4957 9100 4956 9100 4955 9100 4954 9100 4996 MAIN BODY ASSY INSULATOR XSTR MICA INSULATOR BU
69. ara la operaci n de banco tras conectar a una fuente de energ a ac La fuente se refrigera por aire Se debe situar con suficiente espacio de tal forma que la circulaci n de aire refrigerado alcance la parte posterior del instrumento cuando est funcionando Se debe utilizar en un rea donde la temperatura ambiental no exceda de 40 grados C La corriente se reduce en un 1 por grado entre 40 C 55 C Requisitos de Potencia de Entrada Dependiendo de la opci n de voltaje de linea especificada la fuente est lista para operar desde una e las fuentes de energ a listadas en la Tabla de Especificaciones El rango de tensi n de entrada y la corriente y potencia de entrada en la l nea de alta tensi n a plena carga se listan para cada opci n Cable de Red Este aparato est equipado con un cable de red de tres conductores El tercer conductor es el conductor de tierra y cuando ste se enchufa en el lugar apropiado el aparato est conectado a tierra La clavija de offset del conector de cable de red de tres puntas es la conexi n a tierra En ning n caso debe utilizarse este aparato sin una adecuada caja de conexi n a tierra La fuente de alimentaci n se env a con un cable de red para el tipo de toma de corriente utilizado en su pa s Si no se ha incluido el cable apropiado p ngase en contacto con la Oficina de Ventas de HP m s cercana para conseguirlo 27 HEWLETT E3610A PACKARD DC POWER SUPPLY 18
70. border of his premises Operating instructions in the following languages appear on the pages indicated below ENGLISH PAGE 1 1 KOREAN PAGE 2 1 GERMAN PAGE 3 1 FRENCH PAGE 4 1 SPANISH PAGE 5 1 ITALIAN PAGE 6 1 JAPANESE PAGE 7 1 CHINESE PAGE 8 1 SERVICE PAGE A 1 HEWLETT PACKARD HP E361XA 30W BENCH SERIES DC POWER SUPPLIES OPERATING AND SERVICE MANUAL FOR MODELS Manual Part No 5959 5304 Microfiche Part No 5959 5307 HP E3610A Serials KR20600101 and above HP E3611A Serials KR20600101 and above HP E3612A Serials KR20600101 and above Table of Contents SAFETY SUMMARY GENERAL INFORMATION Description Specifications and Characteristics Options Instrument Identification INSTALLATION Inspection Location and Cooling Input Power Requirements Power Cord OPERATION Turn On Checkout Procedure Constant Voltage Operation Constant Current Operation Connecting Loads Operation Beyond Rated Output Pulse Loading Capacitive Loads Reverse Current Loading SERVICE INFORMATION Ds mh 1 1 1 U 1 1 t 1 1 0 20 P b k Printed February 1992 SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to compiy with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufactures and intended use of
71. change has affected the contents of this manual INSTALLATION Inspection When you receive your power supply inspect it for any obvious damage that may have occurred during shipment If there is damage notify the carrier and the nearest HP Sales Office immediately Warranty information is printed on the inside front cover of this manual Save the shipping carton and packing materials in case the supply has to be returned to Hewlett Packard in the future If you return the supply for service attach a tag identifying the owner and model number Also include a brief description of the problem 1 4 The Turn On Checkout Procedure in this manual can be used as an incoming inspection check to verify that the supply is operational See the appendix for tests that verify the supply s specifications Location And Cooling Figure 1 shows the outline shape and dimensions of the unit It is shipped ready for bench operation after connec tion to an ac power source The supply is air cooled Sufficient space should be allotted so that a free flow of cooling air can reach the rear of the instrument when it is in operation It should be used in an area where the ambient temperature does not exceed 40 degrees C The current derates 1 per degree C between 40 C 55 C Input Power Requirements Depending on the line voltage option ordered the supply is ready to be operated from one of the power sources listed in the Specification Table The inpu
72. dell alimentatore e lasciare altro scol legato Funzionamento oltre i valor di uscita consentiti I comandi di uscita permettono di fissare tensione e cor rente su valori superiori fino al 5 a quelli indicati sul pan nello frontale Anche se l alimentatore pu superare il range del 5 senza danno non in grado di assicurare il 100 percento delle sue prestazioni Variazioni di carico L alimentatore passa automaticamente dal funzionamento a tensione costante a quello a corrente costante ogni volta che si produce un aumento sopra il limite prefissato della corrente di uscita Anche se il limite puo essere posto a un valore superiore a quello della corrente di uscita media alti picchi di corrente possono far superare questo limite e cau _ sare un cambio di modalit Se il superam nto deve essere evitato fissare il valore limite in base al picco e non in base al valore medio Carichi capacitivi Un condensatore interno collegato ai terminali di uscita dell alimentatore aiuta a fornire impulsi di breve durata ad alta corrente durante il funzionamento a tensione costante Qualsiasi capacitanza aggiunta dall esterno migliora la ca 6 6 pacit di corrente dell impulso ma riduce la sicurezza garantita dal circuito di limitazione della corrente Un impulso a corrente elevata pu danneggiare i componenti di carico prima che la corrente di uscita media sia abbastanza grande da consentire l intervento del circuito di limita
73. e cas ch ant fixez la limite pr r gl e en fonction des courants de cr te et non du courant moyen Charges capacitives Un condensateur interne connect aux bornes de sortie de l alimentation permet de produire plus facilement des impulsions de forte intensit et de courte dur e pendant le fonctionnement tension constante Toute capacit externe ajout e am liorera la r ponse du courant en impulsions mais diminuera la s curit assur e par le circuit de limitation de courant Une impulsion de forte intensit risque en effet d endommager les composants de charge avant que le courant de sortie moyen suffisant pour provoquer la mise en fonction de ce circuit Charges courant Inverse Des charges actives connect es l alimentation peuvent d livrer celle ci un courant inverse pendant une partie de son cycle de fonctionnement En effet si une source externe Ynjecte du courant dans l alimentation il se produit in vitablement une perte de r gulation et un risque de d t rioration du condensateur de sortie Pour pallier ces inconv nients 1 est n cessaire de pr charger l alimentation par une r sistance de charge fictive afin qu elle d livre du courant pendant tout le cycle de fonctionnement des dispositifs de charge hh u packano FAMILIA HP E361XA DE FUENTES DE ALIMENTACION PARA LABORATORIO DE 30W MANUAL DE OPERACION Y SERVICIO PARA HP 610 Serie KR20600101 anteriores
74. ente como ocurre en pulso de carga pueden sobrepasar el l mite de corriente preestablecido y provocar un cruce Si no desea que se produzca este cruce configure el l mite preestableci do para los requisitos de pico y no para el promedio Cargas Capacitivas Un condensador interno conectado a los terminales de la fuente de alimentaci n ayuda a suministrar pulsos de alta corriente de corta duraci n durante la operaci n de voltaje constante Cualquier capacidad a adida externamen te mejorar la capacidad de pulso de corriente pero reducir la seguridad proporcionada por el circuito 5 6 limitador de corriente Un impulso de alta corriente puede da ar los componentes de la carga antes de que la corrien te media de salida sea lo suficientemente grande para que opere el circuito limitador de corriente Carga de Corriente Inversa Las cargas activas conectadas a la fuente de alimentaci n pueden descargar realmente una corriente inversa a la fuente de alimentaci n durante una parte de su ciclo operativo No se permite que una fuente externa inyecte corriente en la fuente sin p rdida de regulaci n y posible da o al condensador externo Para evitar estos efectos es necesario cargar antes la fuente con un resistor de carga simulada para que la fuente de alimentaci n descargue corriente a trav s de todo el ciclo operativo de los dispositi vos de carga HEWLETT PACKARD ALIMENTATORI CC HP E361XA SERIE BENCH A 30W
75. ger tes Es wird betriebsbereit ausgeliefert und braucht nur noch an das Netz angeschlossen zu werden Das Ger t ist konvektionsgek hlt und sollte deshalb ausreichend bel ftet werden Speziell die K hlrippen auf der Ger ter ckseite d rfen im Betrieb nicht abgedeckt werden Die Umgebungstemperatur darf 40 C nicht berschreiten Stromabfall von 1 pro C zwischen 40 C und 55 C Versorgungsspannung Entsprechend der bestellten Netzspannungsoption ist das Ger t bereit zum Betrieb an einer der in der Tabelle Technische Daten aufgef hrten Netzspannungen Die Eingangswerte sind f r jede Option aufgef hrt Netzkabel Das Ger t ist mit einem dreiadrigen Netzkabel mit Schutz leiter ausgestattet Im Betrieb ist darauf zu achten da der Schutzleiter niemals unterbrochen wird 2 B durch Ein f gen eines Verl ngerungskabels ohne Schutzleiter Das Netzger t wurde mit einem f r Ihr Land passenden Netzkabel ausgeliefert Sollten Sie ein falsches Netzkabel erhalten haben so wenden Sie sich bitte an Ihre zust ndige HP Gesch ftsstelle HEWLETT E3610A PACKARD pc POWER SUPPLY LAMPE 1558 118 DN a OFF RANGE d 0 8v 3A 0 0 2A cc SET ma CV un CC 240 VDC TO 1 ABBILDUNG 2 FRONTPLATTE MIT REGLERN UND ANZEIGEN BETRIEB Einschaltpr fung In den nachfolgenden Einschaltpr fung wird der Gebrauch der Regler und Anzeigen wie in Abbildung 2 gezeigt beschriebe
76. he preset limit for the peak requirement and not the average Capacitive Loads An internal capacitor across the output terminals of the power supply helps to supply high current pulses of short duration during constant voltage operation Any capacitance added externally will improve the pulse current capability but will decrease the safety provided by the current limiting circuit A high current pulse may damage load components before the average output current is large enough to cause the current limiting circuit to operate Reverse Current Loading Active loads connected to the power supply may actually 1 6 deliver a reverse current to the power supply during a portion of its operating cycle An external source can not be allowed to pump current into the supply without loss of regulation and possible damage to the output capacitor To avoid these effects it is necessary to preload the supply with a dummy load resistor so that the power supply delivers current through the entire operating cycle of the load devices HEWLETT LA PACKARD HP E361XA 30W DC HP E3610A Serials KR20600101 HP E3611A Serials KR20600101 HP E3612A Serials KR20600101 2
77. hms unless otherwise specified 3 All capacitors are microfarads unless otherwise specified 4 S1A CC SET ewitch shown is OFF position 5 S2B RANGE selector switch shown is high current range 6 Voltages between TP2 and TP4 in low current range are Mode easton roveto em vsox casta remeros A 9 388 Fa CV CC Indicator Circuit Display Power Supply u Res Ji cu a Ji 8 CC INDICATOR Y y ke 9 INDICATOR COMMON Ji 2 GD J1 7 CV INDICATOR Current Error Amplifier Im Reference and Bias Supply TP1 SIA CC SET Ils 1 Jt 6 I Meter Input Circuit 3 v naw v OUTPUT uy Voltage Error Amplifier cs som n ae c4 1 5ggv Driver OUTPUT Figure A 8 Schmatic Diagram HP Sales and Support Office For more information call your local HP Sales Office listed in the telephone directory white pages Ask for the Electronic Instrument Department Or contact United State Hewlett Packard Company 4 Choke Cherry Road Rockville MD 20850 301 670 4300 Hewlett Packard Company 5201 Tollview Drive Rolling Meadows IL 60008 312 255 9800 Hewlett Packard Company 5161 Lankershim Blvd No Hollywood CA 91601 818 505 5600 Hewlett Packard Company 2015 South Park Place Atlanta GA 30339 404 955 1500 Canada Hewlett Packard Ltd 6877
78. i dello strumento che viene spedito pronto per il funzionamento su banco dopo il collegamento alla rete Poich l alimentatore raf freddato ad aria necessario lasciare dietro il pannello po steriore spazio sufficiente per una buona areazione E im portante inoltre che lo strumento venga usato dove la tem peratura non supera i 40 C La corrente si riduce dell 1 per ogni grado centigrado tra i 40 e i 55 C Requisiti dell alimentazione di Ingresso In base alla tensione di linea richiesta l alimentatore pron to per essere collegato a una delle fonti di alimentazione elencate nella Tabella delle specifiche dove per ogni op zione sono riportati il range della tensione di ingresso la corrente di ingresso e la potenza a pieno carico Cavo di alimentazione Lo strumento equipaggiato con un cavo a tre conduttori Il terzo conduttore quello di terra che consente di mettere a terra lo strumento semplicemente infilando la spina nella presa di alimentazione Non usare mai l alimentatore senza un adeguata messa a terra del cabinet L alimentatore equipaggiato con il cavo di alimentazione adatto al tipo di prese usate nel paese dell acquirente Se non quello previsto richiederlo al rivenditore HP pi vici no HEWLETT E3610A PACKARD DC POWER SUPPLY VOLTS am 155 118 0 8V 24 0 15Y 24 2 2 Oz 0 0 FIGURA 2 COMANDI INDICATORI DEL PANN
79. icherheitshinweise m ssen w hrend der Benutzung der Wartung sowie der Reparatur dieses Ger tes beachtet werden Ein Nichtbefolgen dieser Hinweise oder besonderer Warnungen in dieser Brosch re verletzt Sicherheitsnormen auf den f r dieses Ger t vorgesehenen Anwendungsgebieten Hewlett Packard bernimmt keine Verantwortung f r Folgen die aus der Nichtbeachtung der Hinweise und Warnungen entstehen Vor dem Anschlie en berpr fen Sie ob die eingestellte Netzspannung am Ger t mit Ihrer rtlichen Netzspannung bereinstimmt Ger t erden Dieses Produkt ist ein Ger t der Schutzklasse 1 ausgestattet mit Schutzerde Zur Verringerung der Gefahr durch elektrische Schl ge mu das Ger tegeh use geerdet und deshalb immer ber ein dreiadriges Netzkabel mit Schutzleiter betrieben werden Beim Betreiben des Ger tes ber einen Spartransformator ist sicherzustellen da der Bezugspunkt des Spartransformators an den Neutralleiter des Netzger tes angeschlossen ist Ger t erden Nicht in explosionsgef hrdeter Umgebung betreiben Das Ger t sollte nicht in der Umgebung von leicht entz ndbaren Gasen oder D mpfen betrieben werden ALLGEMEINES Ger tebeschreibung In dieser Bedienungs und Serviceanleitung werden die drei Netzger te E3610A E3611A und E3612A beschrieben Diese Modelle sind kompakte Mehrzweck Netzger te f r den Einsatz am Me platz Sie eignen sich besonders zur Versorgung von linearen und digitalen ICs in
80. ien nummer Die Buchstaben KR stehen f r das Fertigungs land Korea Die erste Ziffer steht f r das Jahr 1 91 2 92 usw und die beiden folgenden Ziffern geben die Woche an Die letzten f nf Ziffern der Seriennummer bilden die f r jedes Neztger t verschiedene fortlaufende Nummer Stimmt die Seriennummer auf Ihrem Netzger t nicht mit der auf der Titelseite dieser Anleitung berein so ist ein gelbes nderungsblatt eingelegt wenn eine konstruktive nderung den Inhalt dieser Anleitung betrifft INSTALLATION Wareneingangspr fung Bitte untersuchen Sie nach Erhalt Ihr Netzger t auf etwaige Transportsch den Falls Sch den festzustellen sind so benachrichtigen Sie sofort den Spediteur sowie Ihre zust ndige HP Gesch ftsstelle Verwahren Sie den Karton und das Verpackungsmaterial f r einen eventuellen sp teren Versand an Hewlett Packard auf Wenn Sie das Ger t einsenden so versehen Sie es bitte mit einem Anh nger auf dem Ihr Name die Ger tenummer und eine Fehlerbeschreibung angegeben ist Die Einschaltpr fung auf der folgenden Seite kann im Rahmen der Wareneingangspr fung angewendet werden Das separat zu beziehende Service Manual beschreibt Testprozeduren mit denen die Spezifikationen des Netzger tes berpr ft werden k nnen Siehe bitte die Beilage f r Testprozeduren mit denen die technischen Daten des Netzger tes berpr ft werden k nnen Aufstellort Abbildung 1 zeigt die Abmessungen des Netz
81. l pulsante CC SET permette di fissare i valori limite di corrente usando il controllo CURRENT senza ridurre l uscita 1 pannello frontale contiene anche un voltmetro ampero metro digitale Due display uno a 3 cifre e mezza E3611A a 3 cifre per la tensione e uno da 3 cifre per la corrente riportano rispettivamente i valori della tensione e della cor rente di uscita valori di uscita di ciascun modello sono riportati nella Tabella delle specifiche Specifiche e caratteristiche supplementarl INGRESSO 115 Vac 10 47 63Hz 0 8A 70W 100 Vac 10 47 63Hz 0 8A 70W 230 Vac 10 47 63Hz 0 4A 70W USCITA E3610A 0 8V 0 3A o 0 15V 0 2A E3611A 0 20V 0 1 5A 0 35V 0 0 85A E3612A 0 60V 0 0 5A o 0 120V 0 0 25A REGOLAZIONE DEL CARICO Tensione costante Inferiore a 0 01 pi 2mV per una variazione da pieno carico a nessun carico nella corrente di uscita Corrente costante Inferiore a 0 01 pi 1 mA per una variazione da zero a massimo nella tensione di uscita REGOLAZIONE DI LINEA Tensione costante Inferiore a 0 01 pi 2mV per qualsiasi variazione di tensione di linea entro i valori di ingresso consentiti Corrente costante Inferiore a 0 01 pi 1mA per qualsiasi variazione di tensione entro i valori di ingresso consentiti ONDULAZIONI E DISTURBI Tensione costante Inferiore a 200uV rms e di 2mV da picco a picco 10Hz 10MHz Corrente costante Inferiore a 200uA rms e di 1 mA da picco a
82. la prima cifra del numero di serie indica l anno es 1 91 2 92 ecc le due successive la settimana e le ultime cinque cifre rappresentano un numero sequenziale assegnato a ogni alimentatore Se il numero di serie riportato sullo strumento acquistato non coincide con quelli riportati sulla pagina del titolo di questa guida a causa di una modifica di progetto che ha influito sul contenuto di queste pagine verr inserito all in terno della guida un foglio giallo indicante le eventuali mo difiche apportate INSTALLAZIONE Ispezione AI ricevimento dell alimentatore verificare che non si siano prodotti dei danni durante il trasporto In questo caso in formare immediatamente il trasportatore e il rivenditore HP pi vicino I dati relativi alla garanzia sono riportati all interno della copertina di questa stessa guida Conservare l imballo per l eventuale rispedizione del prodotto alla Hewiett Pac kard Nello spedire l alimentatore per l assistenza applica 6 4 re un etichetta che riporti il nome del possessore il numero di modello e una breve descrizione del guasto Il controllo all accensione riportato nella guida pu essere utilizzato per effettuare la verifica iniziale del corretto fun zionamento della macchina Le specifiche dell alimentatore possono invece essere verificate seguendo i test riportati nell appendice della presente guida Collocazione e raffreddamento La figura 1 riporta il profilo e le dimension
83. le Output Current peak to peak Expected Results Less than 1 mA p p Test Procedure Connect the test equipment as shown in Figure A 6 but replace the RMS voltmeter with oscilloscope b Set the oscilloscope to AC mode and bandwidth to 10 MHz Turn the unit s power on and turn the VOLTAGE control fully clockwise d Turn up output current to the full rated value Check that the CC indicator remains lighted Reduce CURRENT control if not lighted j Record peak to peak voltage across R and convert it to current through dividing by R Check that the peak to peak noise current is no more than 1 mA TRUE RMS VOLTMETER POWER SUPPLY Rs 1 ohm 1 10 W Figure A 6 RMS Measurement Test setup A 5 CALIBRATION PROCEDURE To calibrate ammeter and full scale current connect test equipments as shown in Figure A 7 DIGITAL VOLTMETER POWER SUPPLY Rs 0 1 ohm 0 1 10 W Figure A 7 Calibration Test Setup Calibration in High Current Range Turn VOLTAGE and CURRENT control fully clockwise b Set RANGE push button to high current range c Turn on power supply and adjust R31 so that DVM indicates exactly as follows 5 over rated current E3610A 0 315 V E3611A 0 158 V E3612A 0 053 V d Adjust R3 on the display board so that the displayed value on the front panel is equal to DVM value divided by R e While depressing CC SET push button adjust R20 so that the displayed value on the front p
84. limite de courant que l on souhaite utiliser l aide du bouton CURRENT sans avoir court circuiter la sortie La face avant comprend un voltm tre amp rem tre num rique Un affichage de 3 1 2 chiffres 3 chiffres sur le mod le E3611A indique avec pr cision la tension et le courant de sortie Les valeurs de sortie pr vues pour chaque mod le sont indiqu es dans le tableau des sp cifications Sp cifications et caract ristiques suppl mentaires ENTREE 115 10 47 63 Hz 0 8A 70 W 100 10 47 63 Hz 0 8A 70 W 230 10 47 63 Hz 0 4A 70 W E3610A 0 8V 0 3Aou0 15V 0 2A E3611A O 20 V 0 1 5 A ou 0 35 V 0 0 85 0 60 V 0 0 5 A ou 0 120 Y 0 0 25 A SORTIE E3612A REGULATION PAR RAPPORT A LA CHARGE Tension constante lt 0 01 2 mV pour une variation comprise entre la pleine charge et la charge nulle du courant de sortie Courant constant lt 0 01 1 mA pour une variation compnse entre 0 et le maximum de la tension de sortie REGULATION PAR RAPPORT A LA TENSION SECTEUR Tension constante lt 0 01 2 mV pour toute variation de la tension secteur dans les limites des valeurs d entr e pr vues Courant constant lt 0 01 1 mA pour toute variation de la tension secteur dans les limites des valeurs d entr e pr vues ONDULATION ET BRUIT Tension constante lt 200 uV eff et 2 mV cr te cr te 10 Hz 10 MHz
85. lue at a 1 KHz rate with 50 duty cycle e Set the oscilloscope for ac coupling internal sync and lock on either the positive or negative load transient f Adjust the oscilloscope to display transients as in Figure A 3 g Check that the pulse width of the transients at 10 mV from the base line is no more than 50 usec as shown PARD Ripple and Noise Definition Periodic and random deviation PARD in the unit s output ripple and noise combine to produce a residual ac voltage superim posed on the dc output voltage Constant voltage PARD is specified as the root mean square rms or peak to peak pp output voltage in a frequency range of 10 Hz to 10 MHz PARD RMS Measurement Test Parameter Measured Variable Output Voltage rms Expected Results Less than 200 uV rms Test Procedure a Connect the test equipment as shown in Figure A 4 _ b Turn the unit s power on and turn CURRENT control fully clockwise c Turn up output voltage to the full rated vaiue Check that the unit s CV indicator remains lighted Reduce VOLTAGE control if not lighted d Check that the rms noise voltage at the true rms voltmeter is no more than 200 uV 10 0 aV div offset 600 UV i 1 000 1 100 000 us 12 4000us 13 2000us 25 6000us 39 0625kke 30 00 nv Figure A 3 Load Transient Recovery Waveform POWER SUPPLY UNDER TEST O TRUE RMS VOLTMETER E3610A E3612A 120ohm Figure A 4 RMS Measurement
86. mVp p 10Hz 10MHz 200 rms ImAp p 1042 10MH2 0 40 40 C 55 1C 1I 0 02 ImV 1C 0 02 2mA 1C 50zs 10mV t 240Vde FRE 0 1 5mV 30 8 SE Mii 0 1 110mA 30 8 1 0 5 t2 25Ct 5C 3
87. matisch in den Konstantstrombetrieb wobei die Ausgangs spannung proportional zur ckgeregelt wird Konstantstrom Betrieb Das Netzger t wird wie folgt f r den Konstantstrom Betrieb eingestellt a Drehen Sie den Stromregler CURRENT in den Linksanschlag so da der Ausgangsstrom auf A eingestellt ist Nun schalten Sie das Netzger t ein b Stellen Sie den Spannungsregler VOLTAGE Netzger t ohne Last auf das zul ssige Maximum Spannungsgrenzwert wie durch die Lastbe dingungen vorgegeben Wenn nun w hrend des Betriebs infolge Last nderung eine Spannungs berh hung eintritt schaltet das Ger t automatisch bei berschreiten des eingestellten Spannungs grenzwertes in den Konstantspannungs Betrieb Der Ausgangsstrom wird proportional zur ckgeregelt c Dr cken Sie die CC SET Taste und stellen Sie den Stromregler CURRENT auf den erforderlichen Ausgangsstrom ein Die CC LED leuchtet erst nach Anschlu der Last Anschlu von Lasten Die Ausgangsbuchsen des Netzger tes sind vom Geh use entkoppelt Jede Ausgangsbuchse kann geerdet werden oder der Ausgang kann erdfrei bis zu 240 V betrieben werden Es wird empfohlen jede Last ber eigene Anschlu leitungen zu verbinden Dadurch werden gegenseitige Kopplungseffekte zwischen den einzelnen Lasten reduziert und die niedrige Ausgangsimpedanz des Netzger tes bleibt voll erhalten Die Verbindungskabel sollten m glichst kurz und verdrillt oder abgeschirmt sein
88. n Gleichzeitig k nnen Sie die Funktionsf higkeit Ihres Netzger tes berpr fen Nachdem das Ger t mit dem Stromnetz verbunden worden ist f hren Sie bitte folgende Schritte aus a Dr cken Sie den Netzschalter LINE in die Position ON b Bringen Sie die Bereichstaste RANGE in die gew nschte Stellung Drehen Sie den Spannungsregler VOLTAGE in den Linkssanschlag und beobachten Sie dabei wie die Spannungsanzeige auf O Vdc sinkt Drehen Sie nun den Spannungsregler in den Rechtsanschlag bis zum Maximum der Ausgangsspannung d Dr cken Sie die CC SET Taste und drehen Sie gleichzeitig den Stromregier CURRENT zum Linksanschlag und anschlie end zum Rechtsanschlag Der Stromgrenzwert mu sich von A bis zum maximalen Nennwert einstellen lassen e Schlie en Sie eine Last an Ihr Netzger t Stromschlaggefahr Schalten Sie vor dem Anschlie en einer Last das Netzger t aus Konstantspannungs Be ieb Das Netzger t wird wie folgt f r den Konstantspannungs Betrieb eingestellt a Schalten Sie das Netzger t ein und stellen Sie die gew nschte Ausgangsspannung ohne Last mit Hilfe des 10 Gang Spannungsreglers VOLTAGE ein Die entsprechende LED sollte leuchten b Dr cken Sie die CC SET Taste und stellen Sie gleichzeitig den 10 Gang Stromregler CURRENT auf Maximum Wenn nun w hrend des Betriebs eine berlastung auftritt der Stromgrenzwert also berschritten wird schaltet das Ger t auto
89. n mero de serie La letra KR designa Korea como el pais de fabricaci n el primer digito indica el 1 91 2 92 etc los siguientes dos digitos indican la semana y los ltimos cinco digitos del n mero de serie son los diferentes n meros de secuencia asignados a cada fuente de alimentaci n Si el n mero de serie de su instrumento no est de acuerdo con el del titulo de este manual una hoja de cambio amarilla puede estar incluida si el cambio de dise o afecta al contenido de este manual INSTALACION Inspecci n Cuando reciba su fuente de alimentaci n compruebe los da os obvios que pudieran haber ocurrido durante el envio Si hay un da o notifiquelo inmediatamente al transportista a la Oficina de Ventas de HP mas cercana La informaci n de garantia aparece en la tapa de este manual Guarde la caja de envio y los materiales de embalaje por si tiene que devolver el articulo a Hewlett Packard en el futuro Si devuelve la fuente para servicio adjunte una etiqueta identificando el propietario y n mero del modelo Incluya tambi n una breve descripci n del problema 5 4 La Verificaci n de Secuencia de Encendido en este manual se puede utilizar como comprobaci n para verificar que la fuente es operativa Consulte el ap ndice para los tests que verifican las especificaciones de la fuente Ubicaci n y Refrigeraci n La Figura 1 muestra la forma y dimensiones del contorno de la unidad Se env a preparada p
90. ndo el rango de corriente alto se selecciona E3610A V 15 V V 8 V Iu 2 A 3 A E3611A V 35 V 20 V 1 0 85 A lo 1 5 A E3612A Vo 120 V V 60 V 1 0 25 loz 0 5 A RESOLUCION DEL CONTADOR Tensi n E3610A 10mV E3611A 100 mV E3612A 100 mV Corriente E3610A 10 mA E3611A 10 mA E3612A 1 mA VELOCIDAD PROGRAMABLE BAJA Tiempo m ximo para que el voltaje de salida cambie entre 100 a 0 1 de voltaje de salida estimado maximo a la condici n de NO LOAD E3610A m ximo 2 5 seg E3611A m ximo 1 0 seg E3612A maximo 1 5 seg RESOLUCION Voltaje de salida minimo o cambio de corriente que se puede optener usando los paneles de control E3610A Tensi n 10 mV Corriente 5 mA E3611A Tensi n 10 mV Corriente 5 mA E3612A Tensi n 100 mV Corriente 2 mA REFRIGERACION Por convenio se emplea refrigeraci n PESO 8 4 165 3 8 Kg netos 9 3 Ibs 4 2 Kg de envio NOTA CARACTERISTICAS ADICIONALES i 881 mm 3469 2692 10 591 in III 318 4 mm 12 534 in FIGURA 1 DIAGRAMA DE CONTORNO Opciones Las siguientes opciones instaladas en f brica est n disponi bles con este aparato Descripci n Potencia de Entrada 230 10 47 63 Hz Fase Unica Potencia de Entrada 100 Vac 10 47 63 Hz Fase Unica Opci n OE3 OE9 Identificaci n del Aparato Las fuentes de alimentaci n de Hewlett Packard se identifi can por un
91. ontinu sur l int gralit des deux gammes de sortie Ne pas toucher les circuits sous tension L utilisateur ne doit pas d monter les capots de l appareil Le remplacement des composants et les r glages internes doivent tre effectu s par un personnel qualifi Symboles de s curit Symbole de renvoi au manuel ce symbole indique que l utilisateur doit se r f rer au manuel A Indique bome de mise a la terre Ce signe indique un risque 1 attire l attention sur une proc dure une manipulation etc qui si elle n est pas correctement ex cut e peut entra ner des dommages corporels Ne poursuivez pas au del de ce signe tant que les conditions indiqu es ne sont pas enti rement comprises et remplies Ce signe indique un risque Il attire l attention sur une proc dure d utilisation une manipulation etc qui si elle n est pas correctement ex cut e peut entra ner la d t rioration ou la destruction partielle ou totale de l appareil Ne poursuivez pas au del de ce signe tant que les conditions indiqu es ne sont pas enti rement comprises et remplies Le bouton VOLTAGE de la face avant permet de fixer la limite de tension lorsque l alimentation est utilis e comme une source de courant constant et le bouton CURRENT permet de fixer la limite de courant en sortie lorsque l alimentation est utilis e comme une source de tension constante La touche CC SET permet de fixer la
92. our MAX 30 Watts gt Current HINWEIS Ausgangsspannungen gr er als Vo sind m glich bei geringem Strom wenn ein h her Spannungsbereich eingestellt ist E3610A V 15 V 8 V 1 2 lo 3 A E3611A V 35 V Vo 20V l 0 85 A l 1 5 A E3612A Vol 120V V 60 V 1 0 25 1 0 5 A AUFL SUNG DER MESSANZEIGE Spannung E3610A 10 mV E3611A 100 mV E3612A 100 mV E3610A 10 mA E3611A 10 mA E3612A 1 mA Strom ABWARTS PROGRAMMIERZEIT Maximale Zeit f r die nderung der Ausgangsspannung von 100 auf 0 1 der maximalen Nenn Ausgangsspannung im lastfreien Zustand LOAD E3610A h chstens 2 5 8 E3611A h chstens 1 05 E3612A h chstens 1 5 s AUFL SUNG Mindest nderung der Ausgangsspannung oder des Ausgangsstromes die sich mit dem Ger t messen l t E3610A Spannung 10 mV Strom 5 mA E3611A Spannung 10 mV Strom 5 mA E3612A Spannung 100 mV Strom 2 mA K HLUNG Konvektionsk hlung GEWICHT 3 8 kg 4 2 kg verpackt HINWEIS ERG NZENDE KENNDATEN H i i i _ 2692 mm 10591 in IM 3184 mm 12 534 in ABBILDUNG 1 GERATEABMESSUNGEN Optionen Die folgenden Optionen sind ab Werk mit diesem Ger t erh ltlich Option Beschreibung OE3 Netzspannung 230 Vac 10 47 63 Hz Single Phase OE9 Netzspannung 100 Vac 10 47 63 Hz Single Phase Ger tekennung Die Netzger te von Hewlett Packard tragen eine Ser
93. rksam wird Aktive Lasten Angeschlossene aktive Lasten k nnen das Netzger t kurzzeitig mit einem R ckstrom beaufschlagen Wird beispielsweise durch einen externen Generator Strom in das Netzger t eingespeist so k nnen die Regeleigenschaften des Netzgerates beeintr chtigt und der Ausgangs kondensator besch digt werden Um dies zu vermeiden mu das Netzger t mit einem Lastwiderstand versehen werden damit das Netzger t permanent Strom abgeben kann HERSTELLERBESCHEINIGUNG Hiermit wird bescheinigt da die Ger te HP E3610A HP E3611A oder HP E3612A in bereinstimmung mit den Bestimmungen von Postverf gung 1046 84 funkent st rt sind Der Deutschen Bundespost wurde das Inverkehrbringen dieses Ger tes angezeigt und die Berechtigung zur berpr fung der Serie auf Einhaltung der Bestimmungen einger umt Wird das Gerat innerhalb einer Anlage betrieben So mu bei Inanspruchnahme der Allgemeinen Genehmigung FTZ 1046 84 die gesamte Anlage der oben genannten Genehmigung entsprechen Die mit einer FTZ Serienpr fnummer gekennzeichnet ist und f r die eine Betriebsgenehmigung vorliegt oder beantragt wird so sind in der Regel keine weiteren Schritte notwendig LC ALIMENTATIONS EN COURANT CONTINU 30 W DE LABORATOIRE SERIES HP E361XA MANUEL D UTILISATION ET DE MAINTENANCE POUR LES MODELES HP E3610A S ries KR20600101 et au dessus HP E3611A Series KR20600101 e
94. rned to HP for warranty service Except for the products returned to Customer from another country HP shall pay for return of products to Customer Warranty services outside the country of initial purchase are included in HP s product price only if Customer pays HP international prices defined as destination local currency price or U S or Geneva Export price If HP is unable within a reasonable time to repair or replace any product to condition as warranted the Customer shall be entitled to a refund of the purchase price upon return of the product to HP LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Customer Customer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation and maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER S SOLE AND EXCLUSIVE REMEDIES HP SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY ASSISTANCE The above statements apply only to the standard product warranty Warranty options extended support contacts product maintenance agreements and cus
95. se selec ciona mediante la tecla RANGE del panel frontal Puede ajustarse la salida continuamente para el voltaje y la corriente a trav s del rango de salida 5 2 Mantkngase Alejado de los Circuitos de Baja Ten si n El operador no debe retirar la cubierta del aparato La sustituci n de los componentes los ajustes internos deber n ser realizados por personal de servicio cualificado S mbolos de Seguridad S mbolo manual del aparato apare cer este simbolo cuando sea necesario que el usuario consulte el manual de instrucciones Indica terminal de tierra masa El signo WARNING indica un ries go Advierte sobre un procedimien to o pr ctica el cual si no se ejecuta o realiza correctamente podr a causar lesi n personal No siga m s all del WARNING hasta que haya comprendido y cumplido las condiciones indicadas El signo CAUTION indica un riesgo Advierte sobre un procedimiento operativo o similar el cual si no se ejecuta o realiza correctamente podr a causar da os o destrucci n de todo el producto o parte de l No siga m s all del CAUTION hasta que haya comprendido y cumplido las condiciones indica das El control VOLTAGE del pane frontal se puede utilizar para establecer el l mite de tensi n cuando el equipo se utiliza como una fuente de corriente constante y el control CURRENT para establecer el l mite de salida de corriente cuando el equipo se utiliza como una fuente de ten
96. si n constante La tecla CC SET permite configurar conveniente mente el valor l mite de corriente utilizando el control CURRENT sin reducir la salida El panel frontal incluye un voltimetro amperimetro digital La pantalla de 3 1 2 d gitos E3611A 3 d gitos y la pantalla de 3 d gitos muestran exactamente el voltaje y corriente de salida respectivamente Las potencias de salida de cada modelo se muestran en la Tabla de Especificaciones Especificaciones Caracterfsticas Adicionales ENTRADA 115 Vac 10 47 63 Hz 0 8 A 70 W 100 Vac 10 47 63 Hz 0 8 A 70 W 230 Vac 10 47 63 Hz 0 4 A 70 W SALIDA E3610A 0a8V 0a3A608 15 Da2A E3611A Oa20V 0a1 5A60 a 35 V 080 85 A E3612A Oa60V 0a0 5A60a 120V 0 25 A REGULACION DE CARGA Tensi n Constante Menos de 0 01 m s 2 mV para un cambio de operaci n a plena carga a operaci n sin carga en la corriente de salida Corriente Constante Menos de 0 01 m s 1 mA para un cambio desde cero a m ximo valor en la tensi n de salida REGULACION DE LINEA Voltaje Continuo Menos de 0 01 m s 2 mV para cualquier cambio en la tensi n de linea dentro de la entrada nominal Corriente Continua Menos de 0 01 mas 1 mA para cualquier cambio en la tensi n de l nea dentro de la entrada nominal RIZADO Y RUIDO Tensi n Constante Menos de 200 uV rms y 2 mV pico a pico 10 Hz 10 MHz Corriente Constante Menos de 200 uA rms y 1 mA pico a pico 10 Hz 10 MHz
97. sly For any given value of load resistance the power supply must act either as a constant voltage source or as a constant current source it can not be both transfer between these two modes is accomplished at a value of load resistance equal to the ratio of the output voltage control setting to the output current control setting The reference and bias circuit provides stable reference voltages which are used by the constant voltage current error amplifier circuits for comparison purpose The digital meter circuit provides an indication of output voltage and current for constant voltage or constant current operating modes The display power circuit provides voltage which is used by A D converter and LED drive Diode CR3 is connected across the output terminals in reverse polarity It protects the output electrolytic capacitor and the series regulator transistor from the effects of a reverse voltage applied across the output terminals PERFORMANCE TEST The following provides the test procedure in high current range for verifying the unit s compliance with the specifications and character istics of Table in page 1 3 The same test procedure may be applied to low current range Test Equipment Required The following Table lists the equipment required to perform the tests and adjustments You can separately identify the equipment for performance tests or calibration in the USE column of the Table Table A 1 Test Equipment Required
98. t au dessus HP E3612A S ries KR20600101 et au dessus Sommaire REGLES DE SECURITE 4 1 GENERALITES 4 2 Description 4 2 Sp cifications et caract ristiques 4 3 Options 4 4 identification des appareils 4 4 INSTALLATION 4 4 Inspection 4 4 Emplacement et ventilation 4 4 Tension secteur 4 4 Cordon d alimentation 4 4 UTILISATION 4 5 Proc dure de v rification la mise sous tension 4 5 Mode de tension constante 4 5 Mode de courant constant 4 5 Connexion de charges 4 5 Fonctionnement au del des valeurs de sortie pr vues 4 6 Fonctionnement sur charges impulsives 4 6 Charges capacitives 4 6 Charges courant inverse 4 6 MAINTENANCE Reference Manuel No 5959 5304 Imprim en F vrier 1992 R f rence Microfiche No 5959 5307 4 1 REGLES DE SECURITE Les r gles de s curit suivantes doivent tre observ es pendant toutes les phases d utilisation de maintenance et de r paration de cet appareil Le non respect de ces r gles ou des avertissements sp cifiques inclus divers endroits de ce manuel constitue une infraction aux normes de s curit applicables la conception la fabrication et l usage pr vu de cet appareil Dans ce cas Hewlett Packard d cline toute responsabilit Avant la mise sous tension V rifiez que l appareil est r gl sur la tension secteur appropri e Mise la terre de l appareil Cet appareil appartient la Classe de s curit muni d une borne de terre de protection
99. t current to the full rated value Check that the AMPS display reads full rated values and CC indicator remains lighted Reduce CURRENT control if not lighted e Record output voltage across Rs and convert it to current through dividing by R f Adjust autotransformer to the high line voltage 127 Vac for 115 Vac g When the reading settles record the voltage across R again Check that the two recorded readings differ no more than 01 of output current plus 1 mA PARD Ripple and Noise Definition Periodic and random deviation PARD in the unit s output ripple and noise combine to produce a residual ac current as well as ac voltage superimposed on the dc output Constant Current PARD is specified as the root mean square rms output current in a frequency range of 10 Hz to 10 MHz with the unit in CC operation PARD RMS Measurement Test Parameter Measured Variable Output Current rms Expected Results Less than 200 uA rms Test Procedure a Connect the test equipment as shown in Figure A 6 b Turn the unit s power on and turn the VOLTAGE control fully clockwise c Turn up output current to the full rated value Check that the CC indicator remains lighted Reduce CURRENT control if not lighted d Record rms voltage across R and convert it to current through dividing by R e Check that the rms noise current is no more than 200 uA PARD Peak to Peak Measurement Test Parameter Measured Variab
100. t et ventilation La Figure 1 indique les formes et les dimensions de votre alimentation Celle ci est livr e pr te fonctionner en laboratoire d s sa connexion une prise secteur Cet appareil tant refroidi par air pr voyez suffisamment de place pour que l air puisse librement circuler l arri re pendant le fonctionnement La temp rature ambiante ne doit pas d passer 40 C Le courant d cro t de 1 par degr C entre 40 et 50 C Tension secteur Selon l option sp cifi e la commande l appareil est pr t fonctionner sur l une des tensions secteur indiqu es dans le tableau des sp cifications La gamme de tension ainsi que le courant et la consommation pour la tension secteur maximale et pleine charge sont indiqu s pour chaque option Cordon d alimentation Cet appareil est dot d un cordon d alimentation trois conducteurs Le 3 me conducteur est le conducteur de terre et lorsque le cordon est branch sur une prise appropri e l instrument est reli a la terre Sur le connecteur trois broches du cordon d alimentation la broche du milieu est la borne de mise la terre Cet appareil ne doit pas tre utilis sans tre correctement reli la terre Votre alimentation lectrique doit normalement tre livr e avec un cordon d alimentation adapt au type de prise utilis dans votre pays Si ce n est pas le cas demandez un autre cordon votre bureau commercial HP F w 2 HEWLETT
101. t the current limit value can be set from zero to maximum rated value e Connect load to output terminals Shock Hazard Disconnect ac power before making output terminal connections Constant Voltage Operation To set up a power supply for a constant voltage operation proceed as follows a Turn on power supply and adjust 10 turn VOLTAGE control for desired output voltageloutput terminals open CV LED should light b While depressing CC SET push button adjust 10 turn CURRENT control for maximum output current allow able current limit During actual operation if a load change causes the current limit to be exceeded the power supply will automatically crossover to constant current mode and output voltage will drop propor tionately 1 5 Constant Current Operation To set up a power supply for a constant current operation proceed as follows a Turn CURRENT control fully counter clockwise to ensure that output decreases to A and then turn on power supply b Adjust VOLTAGE control no load connected for maximum output voltage allowable voltage limit as determined by load conditions During actual opera tion if a load change causes the voltage limit to be exceeded the power supply will automatically cross over to constant voltage operation at the preset voltage limit and output current will drop proportion ately Adiust CURRENT control for desired current while depressing CC SET button CC LED
102. t voltage range and the input current and power at high line voltage and full load is listed for each option Power Cord This instrument is equipped with a three conductor power cable The third conductor is the ground conductor and when the cable is plugged into an appropriate receptacle the instrument is grounded The offset pin on the power cable three prong connector is the ground connection In no event should this instrument be operated without an adequate cabinet ground connection The power supply was shipped with a power cord for the type of outlet used at your location If the appropriate cord was not included contact your nearest HP Sales Office to obtain the correct cord HEWLETT E3610A PACKARD DC POWER SUPPLY D 15 58 2 18 0 0 8A 0 1V 2A 240 VDC MAX TO L FIGURE 2 FRONT PANEL CONTROLS AND INDICATORS OPERATION Turn On Checkout Procedure The following checkout procedure describes the use of the front panel controls and indicators illustrated in Figure 2 and ensures that the supply is operational a Push LINE button to ON b Set RANGE push button to desired range c Turn VOLTAGE control fully counter clockwise to ensure that output decreases to Vdc then fully clockwise to ensure that output voltage increases to the maximum output voltage d While depressing CC SET push button turn the CURRENT control fully counter clockwise and then fully clockwise to ensure tha
103. te est aislada de tierra El terminal de salida puede conectarse a tierra o la salida puede trabajar en modo flotante hasta 240 voltios respecto a tierra Cada carga deber a conectarse a los terminales de salida de la fuente de alimentaci n utilizando pares separados de cables de conexi n Esto minimizar los efectos de acopla miento mutuo entre cargas y mantendr todas las ventajas de la impedancia de salida baja de la fuente de alimenta ci n Cada par de cables de conexi n deber an ser lo m s cortos posible y retorcerlos o protegerlos reduce la capta ci n de ruido Si se utiliza una protecci n conecte un extremo al terminal de tierra de la fuente de alimentaci n y deje el otro desconectado Operaci n Bajo Salida Nominal Los controles de salida pueden ajustar el voltaje o corriente a valores sobre hasta 5 la salida nominal como se indica en la pantalla del panel frontal Aunque la fuente puede superar en 5 de la regi n de sobrerango sin da arla no se puede garantizar que cubra todas las especificaciones de rendimiento en esta regi n Consideraciones Sobre el Impulso de Carga La fuente de alimentaci n pasara autom ticamente de la regi n de operaci n tensi n constante a la operaci n en corriente constante en respuesta a un aumento sobre el l mite preestablecido en la corriente de salida Aunque se puede poner el l mite preestablecido m s alto que la corriente de salida los picos altos de corri
104. tions Hewlett Packard sont identifi es par un num ro de s rie unique Les lettres KR indiquent que le pays de fabrication est la Cor e le premier chiffre indique l ann e 1 91 2 92 etc les deux chiffres suivants indiquent la semaine et les cinq demiers chiffres sont un num ro s quentiel affect chaque alimentation Si le num ro de s rie de votre appareil ne correspond pas ceux qui figurent sur la page de titre et si un changement de conception a modifi le contenu de ce manuel celui ci doit mormalement inclure une fiche de modification jaune INSTALLATION Inspection Lorsque vous recevez votre alimentation inspectez la pour d terminer si elle a subi des dommages vidents pendant le transport Si oui avisez imm diatement le transporteur et votre bureau commercial HP Les conditions de garantie sont imprim es au verso de la couverture de ce manuel Conservez le carton d exp dition etles mat riaux d emballage pour le cas o vous auriez retourner votre alimentation HP pour r paration Dans cette ventualit fixez une tiquette identifiant le propri taire et le n de mod le Joignez galement une br ve description du probl me Pour v rifier que l alimentation est op rationnelle vous pouvez ex cuter la Proc dure de v rification la mise sous tension d crite plus loin L annexe de ce manuel d crit des tests permettant de v rifier les sp cifications de l appareil Emplacemen
105. tomer assistance agreements are also available Contact your nearest Hewlett Packard Sales and Service office for further information on HP s full line of Support Programs LA packano Herstellerbescheinigung Hiermit wird bescheinigt da das Ger t System HP E3610A E3611A E3612A in bereinstimmung mit den Bestimmungen von Postverf gung 1046 84 funkentst rt ist Der Deutschen Bundespost wurde das Inverkehrbringen dieses Ger tes Systems angezeigt und die Berechtigung zur berpr fung der Serie auf Einhaltung der Bestimmungen einger umt Zusatzinformation fur Me und Testger te Werden Me und Testger te mit ungeschirmten Kabeln und oder in offenen Me aufbauten verwendet so ist vom Betreiber sicherzustellen da die Funk Entst rbestimmungen unter Betriebsbedingungen an seiner Grundst cksgrenze eingehalten werden Manufacturer s declaration This is to certify that the equipments HP E3610A E3611A E3612A are in accordance with the Radio Interference Requirements of Directive FTZ 1046 84 The German Bundespost was notified that this equipment was put into circulation the right to check the series for compliance with the requirements was granted Additional Information for Test and Measurement Equipment If Test and Measurement Equipment is operated with unscreened cables and or used for measuremefts on open set up the user has to assure that under operating conditions the Radio Interference Limits are still met at the
106. tput Current Expected Results Less than 0 01 plus 1 mA Test Procedure a Connect the DVM across R in Figure A 2 Operate the electronic load in constant voltage mode and set its voltage to the full rated value of power supply b Turn the unit s power on and turn VOLTAGE control fully clockwise Turn up output current to the full rated value Check that the AMPS display reads full rated values and CC indicator remains lighted Reduce CURRENT control if not lighted d Record the voltage across Rs and convert it to current through dividing by R e Operate the electronic load in short input short mode f When the reading settles record voltage across R again Check that the two recorded readings differ no more than 0 01 of output current plus 1 mA Source Effect Line Regulation Definition Source Effect is the change in dc output current when the ac input voltage changes from the minimum to maximum val uel 10 of nominal voltage Test Parameter Measured Variable Output Current Expected Results Less than 0 01 plus 1 mA Test Procedure a Connect the DVM across R in Figure A 2 Operate the electronic load in constant voltage mode and set its voltage to the full rated value of power supply b Connect the unit to the ac power line through a variable autotransformer that set for low line voltage 104 Vac for 115 Vac Turn the unit s power on and turn VOLTAGE control fully clockwise d Turn up outpu
107. ughout this discussion refer to both the block diagram of Figure A 1 and the schematic diagram at the rear of the manual The input AC line voltage is stepped down by the power transformer and applied to the rectifier and filter The rectifier filter converts the AC input to raw DC which is fed to the positive output terminal via parallel series regulator Q1 and Q3 and current sampling resis tor R2 The regulator part of the feedback loop is made to alter its conduction to maintain a constant output voltage or current The voltage developed across the current sampling resistor is the input to the constant current error amplifier The constant voltage error amplifier obtains its input by sampling the output voltage of the supply Any changes in output voltage or current are detected amplified by the error amplifier and driver and applied to the series regulator in the correct phase and amplitude to counteract the change in output voltage or current Two error amplifiers are included in a CV CC supply one for controlling output voltage the other for controlling output current Since the constant voltage amplifier tends to achieve zero output impedance and alters the output current whenever the load resis tance changes while the constant current amplifier causes the output impedance to be infinite and changes the output voltage in response to any load resistance change it is obvious that the two amplifiers can not operate simultaneou
108. uridad Clase provisto con un terminal de tierra protector Para minimi zar el riesgo de descarga se debe conectar el chasis y la caja del aparato a una masa de tierra el ctrica El aparato debe estar conectado a un tendido de suministro de energ a ac mediante un cable de transmisi n el ctrica de tres conductores con el tercer cable firmemente conectado a una masa el ctrica masa de seguridad a la salida de energ a Cualquier interrupci n del conductor protector de tierra o desconexi n del terminal de tierra protector causar un riesgo de descarga potencial que podr a ocasio nar una lesi n personal Si se va a suministrar energ a mediante un autotransformador externo de reducci n de voltaje aseg rese de que el terminal com n del autotrans formador est conectado al neutro polo de tierra de las l neas de energ a ac tendido de suministro No Trabaje en un Ambiente Explosivo No maneje el aparato en presencia de gases o vapores inflamables INFORMACION GENERAL Descripci n Este manual de operaci n y servicio cubre tres fuentes de alimentaci n de doble rango de HP los modelos E3610A E3611A y E3612A Son tres fuentes de alimentaci n para laboratorio compactas y de prop sito general que son tiles particularmente para alimentar circuitos IC tanto lineales como digitales A menos que se establezca de otra forma toda la informaci n de este manual se aplica iguamente a los tres modelos El rango de salida
109. wise all information in this manual applies equally to all three models The desired output range is selected by the front panel RANGE push button The output can be continuously adjusted for voltage and current throughout either output range Keep Away From Live Circuits Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made by qualified service personnel Safety Symbols Instrument manual symbol the product will be marked with this symbol when it is necessary for the user to refer to the instruction manual Indicate earth ground terminal The WARNING sign denotes a hazard It calls attention to a proce dure practice or the like which if not correctly performed or adhered to could result in personal injury Do not proceed beyond a WAR NING sign until the indicated con ditions are fully understood and met The CAUTION sign denotes a haza rd It calls attention to an operating procedure or the like which if not correctiy performed or adhered to could result in damage to or destru ction of part or all of the product Do not proceed beyond CAUTION sign until the indicated conditions are fully understood and met The front panel VOLTAGE control can be used to establish the voltage limit when the supply is used as a constant current source and the CURRENT control can be used to establish the output current limit when the supply is used as a constant
110. zione della corrente Carico di corrente inverso I carichi attivi collegati all alimentatore possono di fatto for nire a quest ultimo una corrente inversa durante una parte del suo ciclo di funzionamento Non consentito a fonti esterne di immettere corrente nell alimentatore senza che si abbiano una perdita di regolarit e possibili danni al con densatore di uscita Per evitare questi effetti necessario precaricare l alimentatore con un resistore di carico fittizio in modo che l alimentatore produca corrente per l intero ciclo operativo dei dispositivi di carico HP E3610A E3611A E3612A 30W DC E36104 KR20600101 E3611A KR20600101 E3612A KR20600101 E IR 7 2 7 2 7 2 7 3 7 4 7 4 7 4 7 4 7 4 7 4 7 5 7 5 7 5 7 5 7 5 7 6 7 6 7 6 7 6 7 6 1 ASEH

4 - UCSD Department of Physics

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