STEVAL-IHT005V2 - STMicroelectronics
Contents
1. A 39 00 e 16001 89 m 994 ano 9479 vu 9 SS z o 98 80 507 O uo auo SF 55 Gss 50 Gt esov ino NE 4 T sov sre wong 1 AT AT esov q 89 69 ANAY 5107 OM Y 22 deg 198 96H Jepee esov 5 juiodjsej Id Bz sov ino C oh 0 gay ai o 5015 9 8 58801527 Sov ag SE9L1SOV 091 599 Z sov a d AS0 3U OL Ba sov Sov 31 Sov NOLIN uy 5019 1uodisey SOLE G31 K 1 O4 EU 3j 5691152 31 Py Tru E Sov 9 SOW aai Sra isov 110 Sov 5015 v SLf s 90s5v r 60107 60102 4 a vir ISHN HSE9LL YALANOLLNALOd 906 30 OL ZX uou gt w PN E vous 38 sv Toss LT m t sov 5 918 4 cg soy M 029 0 ano Ord E A aay QNO GND QNO 160 9 E 0015 Fa q a Sov 081 1 x Su a I 300 a 62 5015 89 am 1 wit VLYSO8 i X sed zo E l 50 HS VIN an2. 9 3 4 Load and gate control fitting 9 4 Functional description 10 4 1 Phase angle control 10 4 2 Full wave control 5225 26 saws aca OC ae whe bee ace eee Ro a 10 5 Power supply consumption 12 5 1 Max output current and standby consumption 12 5 2 Gate voltage impact on gate current 12 5 3 Pulsed gate control and average gate current consumption 13 6 Board immunity performances 14 6 1 Hardware and software features to increase immunity 14 Software features 2 0 0 66 eee a s Rp Ry e 14 6 2 Surge tesis results 14 2 27 DoclD024503 Rev 1 Ly UM1631 Contents 6 3 B rst tests OTTIMO 15 6 3 1 Test procedure i s Q be REG RE tae b aed 15 6 3 2 Test results of the board without hardware modifications 15 6 3 3 Input filter influence 15 6 3 4 Noise suppressor influence 16 6 3 5 Gate filtering circuit influence 17 6 3 6 Immunity to relay switching 17 Appendix A STEVAL IHT005V2 schematic
3. Input filter influence nF X2 capacitor is implemented as the input filter To achieve 4 kV immunity against the burst spikes for all the AC switches it was necessary to add two other X2 capacitors 100 nF and 220 nF as each of them influenced a different type of coupling These two capacitors are not included on the STEVAL IHT005V2 board as only Z0109 was below 4 kV level DoclD024503 Rev 1 15 27 Board immunity performances UM1631 Note 6 3 4 16 27 Table 5 IEC 61000 4 4 results with input filter modification STEVAL IHT005V2 Vin 254 VAC 50 Hz 2kV 4 6 kV 8kV Standby A A B B L ON level 3 5 2 ms A A Standby A A N ON level 3 5 2 ms A A Standby A A L N ON level 3 5 2 ms A A Standby A A L ON level 3 5 2 ms A A Standby A A N ON level 3 5 2 ms A A Standby A A L N ON level 3 5 2 ms A A B B A No changes in functionality The board works properly no reset occurring B Reset occurs but the board recovers without external intervention C Application does not recover without external intervention Two states were tested Standby mode when all devices are OFF and ON level 3 when all devices are turned ON the devices controlled in full wave mode T3 ACS1 ACS2 ACS3 are ON for the whole period and phase angle controlled devices T1 T2 are ON at level 3 5 2 ms delay after zero voltage crossi
4. 0 1631 y life dugmented User man ual STEVAL IHT005V2 3 3 V control of ACS Triac with STM32 Introduction The STEVAL IHT005V2 demonstration board is designed for the home appliance market with a focus on the demonstration of a robust solution with a 3 3 V supplied 32 bit MCU Targeted applications are mid end and high end washing machines dishwashers and dryers with different kinds of ACS triacs The demonstration board is based on the recently introduced 48 pin 32 bit STM32F100C4T6B MCU running at 24 MHz RC user trimmable internal RC clock featuring 16 kBytes of Flash memory 12 bit A D converter 5 timers communication interfaces and 4 kBytes of SRAM The power supply circuitry is based on the ViPer 16L an offline converter with an 800 V avalanche rugged power section operating at 60 kHz The power supply provides negative 6 V in buck boost topology The STEVAL IHT005V2 can control 2 high power loads up to 2830 W thanks to the T1635H a 16 A 600 V high temperature Triac and up to 2050 W thanks to the ACST1635 8FP a 16 A 800 V high temperature overvoltage protected ACST device The high power load control is based on phase angle control In order to limit the inrush current and possible current peaks the demonstration board features a soft start routine and a smooth power change function for the high power loads The STEVAL IHT005V2 can also control 4 low power loads up to 100 W thanks to 3 5108 85
5. The red button S5 controls relay R1 Relay is controlled in the continuous DC mode The DC control starts in zero voltage for control coil The coil control in zero voltage does not lead to accurate Zero Voltage Switching of the power contacts Button control is used in a two step control When the button is first pushed it turns the related device ON A second push of the button turns the related device OFF All devices controlled by buttons are set in the OFF position after reset Figure 3 Overview of the demonstration board operation LOAD FOR ACS1 Diode D7 signals the LOAD FOR T1 ACS108 8SA gate signal is ON T1635H 6T Button controls ACS1 in ON OFF mode pom Potentiometer controls the Net rey ud phase angle Diode D11 signals the Diode D6 signals the MIN POWER gate signal for T1 is ON board is supplied 8 27 DoclD024503 Rev 1 Ly UM1631 Getting started 3 3 3 4 MCU programming Once the demonstration board has the mains cable and load cable correctly connected it be powered on STEVAL IHT005V2 demonstration board goes to wait for signal mode immediately after powering it on A JTAG connector for MCU programming is used when software modifications are necessary Warning Programming device has to be galvanically isolated from mains when programmed directly on mains Load and gate control fitting Gate current pulse is generated by the MCU The length of
6. Gate pulse length angle Triac gate signal 07460 Phase angle control is based on changing the firing angle delay The firing angle determines the power that is delivered to the load The shorter the firing angle delay the higher the power Firing angle and gate control pulse are defined by software Table 1 shows initial setting of firing angle Table 1 Firing angle delay Level 1 Level 2 Level 3 Level 4 Level 5 Firing angle delay 8 5 ms 6 9 ms 5 2 ms 3 6 ms 2 0 ms Full wave control Control of T3 20109 ACS1 ACS2 and ACS3 all ACS108 8S is based on full wave pulse control DoclD024503 Rev 1 Ly UM1631 Functional description Figure 5 Full wave control description Triac gate signal Gate pulse length gt 07461 Full wave pulse control is based on sending gate control pulse immediately after ZVC signal Gate control pulse length is defined by the software Refer to Table 2 for default gate current pulse duration for all AC switches Duration of each pulse is set separately for 50 Hz and 60 Hz mains Table 2 Initial gate current pulse duration Initial gate Initial gate pulse pulse Device Variable name for 50 Hz mains duration Variable name for 60 Hz mains duration ms timer ms timer steps 7 steps ACS1 ACS 1 SWITCHTIME 50HZ 10 100 ACS 1 SWITCHTIME 60HZ 8 3 83 2 20 ACS
7. 19 A 1 SGhemallO ace veces cee Rak Sadun eR Sala 19 A 2 Demonstration board layout 20 21 4 Gate resistor 21 Gate resistor 21 Assumptions for 22 A5 Billof material FERRENT 23 REVISION RR basse ________ ___ aE 26 DoclD024503 Rev 1 3 27 Board features and objectives UM1631 1 1 4 27 Board features and objectives Objectives The board is designed for promotion of a complete solution for home appliance applications based on STMicroelectronics components Special emphasis is placed on demonstration of the robust full 3 3 V solution Robustness is demonstrated on 4 kV level in class A during IEC 61000 4 4 burst test This board also allows designers to check AC switches control feasibility with a 3 3 V supply Gate currents can be measured and compared to the information given in AN2986 Promoted parts are e STM32F100C4T6B value line 32 bit MCU e 16 5 6 16 A 600 V 35 mA high temperature Snubberless Triac in TO 220 package e ACST1635 8FP 16 A 800 V high temperature overvoltage protected AC switch in TO 220 FPAB package e ACS108 8SA
8. 9 5 eeu ano i mg 1 INO 7 2758577 5 cee AS Oly A 108 440 NO O04 LEH eiva 0 M 63 VIN 7 3u 001 595 99 62 8000132815 pes E O 60 07 AN uuo L ano QNO 10 f Ao l 696 095 GO zad i qm epe e X T 60102 Sio vio SZA T ped o no fete 9 51 uot 1 pe H lutodis l HSE9HL GHI Dos T SUN OVI SUN fele 19 vas 20 Ur j m mot WSS 15932 5 aTh E p 07 177 t t t 4 S NSOE BAZ N 440 ZX Seu VIN du 0 5691150 1 zo ASLA OL wy T i T 98058 uy 939 A9L WT ano e een dari ozz Ty LX 4 Siu YN AOSHI 27 AOSHI 2 Ho mE 0 i T 394 232 90HLHLLS wodna mE DONE LOONE sos 9 4 1 AS b T A AU K 2 yan AS Nos osl TT QNS b i Su 114 VIN 50 oe 1 zr H yu deo Woe 1 osL 05 1022 1 05 022 OL L O98 ox jurodjsej e ba T9480 19 27 DoclD024503 Rev 1 STEVAL IHT005V2 schematic UM1631 A 2 20 27 Demonstration board l
9. e g compliance with technical equipment and accident prevention rules Do not touch the board after disconnection from the mains power supply as several parts and power terminals which contain possibly energized capacitors need to be allowed to discharge completely DoclD024503 Rev 1 Ly UM1631 Getting started 3 Getting started 3 1 Connection diagram Figure 2 shows an image of the board with proper connection of each application Figure 2 Board connector LOAD FOR T3 LOAD FOR ACS2 LOAD FOR T2 Z0109MA ACS108 8SA LOAD FOR T1 L ACST1635 8FP LOAD FOR ACS1 LOAD FOR ACS3 T1635H 6T ACS108 8SA ACS108 8SA 3 OUT ACSI 24 ACS3 5 2 CHA 62 13 i Buttons for ON OFF control Potentiometers for phase control bus JTAG CONNECTOR Note Connect loads and voltage probes before applying line voltage 3 2 How to operate the STEVAL IHT005V2 Line voltage must be connected in position as described in Figure 2 The demonstration board can be operated with or without the load Even if no load is connected to the demonstration board all signals are present and can be displayed on the oscilloscope Red LED D6 signals the board is properly supplied from the mains It also signals that high voltage is present on the demonstration board It is recommended although not required to turn both potentiometers to the OFF position before powering the demonstration board The board is ready to o
10. or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT ST PRODUCTS ARE NOT DESIGNED OR AUTHORIZED FOR USE IN A SAFETY CRITICAL APPLICATIONS SUCH AS LIFE SUPPORTING ACTIVE IMPLANTED DEVICES OR SYSTEMS WITH PRODUCT FUNCTIONAL SAFETY REQUIREMENTS B AERONAUTIC APPLICATIONS C AUTOMOTIVE APPLICATIONS OR ENVIRONMENTS AND OR D AEROSPACE APPLICATIONS OR ENVIRONMENTS WHERE ST PRODUCTS ARE NOT DESIGNED FOR SUCH USE THE PURCHASER SHALL USE PRODUCTS AT PURCHASER S SOLE RISK EVEN IF ST HAS BEEN INFORMED IN WRITING OF SUCH USAGE UNLESS A PRODUCT IS EXPRESSLY DESIGNATED BY ST AS BEING INTENDED FOR AUTOMOTIVE AUTOMOTIVE SAFETY OR MEDICAL INDUSTRY DOMAINS ACCORDING TO ST PRODUCT DESIGN SPECIFICATIONS PRODUCTS FORMALLY ESCC QML OR JAN QUALIFIED ARE DEEMED SUITABLE FOR USE IN AEROSPACE BY THE CORRESPONDING GOVERNMENTAL AGENCY Resale of ST products with provisions different from the statemen
11. 0 8 A 800 V overvoltage protected ACS devices and Z0109 1 A standard 4 quadrant 600 V Triac The demonstration board passed the precompliance tests for EMC directives IEC 61000 4 4 burst up to 8 kV and IEC 61000 4 5 surge up to 2 kV When put in standby mode the STEVAL IHT005V2 has an overall standby power consumption below 500 mW at 264 V 50 Hz Figure 1 STEVAL IHT005V2 L 52 R22 122 a ceca October 2013 DoclD024503 Rev 1 1 27 www st com Contents UM1631 Contents 1 Board features and objectives 4 1 1 ODJECUVE Tr 4 1 2 Board features 5 1 3 Targeted applications 5 1 4 Operating conditions 5 2 Safety instructions 2522 23 22 555 52222 2 4 0000 66 6655 55 6 2 1 Intended USE 2220245 had a a 6 2 2 ert peng 6 2 3 Electrical connection 6 2 4 Board operation 6 3 Getting started icon sucus ERERKGRR E 7 3 1 Connection diagram 7 3 2 How to operate the 005 2 7 3 3 MCU programming
12. Any 1 C9 10 nF 50 V 0603 SMD Capacitor Any 1 CE1 10 uF 50 V Electrolytic capacitor Any 1 CE4 220 uF 16 V Electrolytic capacitor Any 1 5 10 uuF 16 V Electrolytic capacitor Any 1 CE6 N A Electrolytic capacitor Any 1 CN2 MLW20G Connector Any 1 D6 LED 0805 red 20 mA Typical LED Any 1 K1 RAS 0515 Single pole relay Any 1 L1 1mH0 13A Inductor Any 1 L2 1mH0 28A Inductor Any 1 L3 a tia SMD Inductor Any 1 Q1 BC557A ae Any 1 Q2 BC547A 1 R12 N A Varistor Any 1 R14 595 275 Varistor Any 1 R15 1 2 KQ 0 6 W Resistor Any 1 R18 2 KQ 0 6 W Resistor Any 1 R28 56 Q 0 6 W Resistor Any 1 R31 4 7 KQ 0 6 W Resistor Any 1 R32 2 0805 SMD Resistor Any Ly DoclD024503 Rev 1 23 27 STEVAL IHT005V2 schematic UM1631 Table 9 Bill of material continued Quan xat tity Designator Value Description Vendor Order code 1 R5 22 0 5 2 W Resistor Any 1 R69 100 20 6 W Resistor Any 1 S1 P DT6BL Button Any 2 S2 S3 P DT6SW Button Any 1 S4 P DT6WS Button Any 1 S5 P DT6RT Button Any Crystal oscillator To pH NA HC49 U 8 MHz Ay 2 CE2 CE3 4 7 uF 450 V Electrolytic capacitor Any 2 R1 R2 220 1 0 6 W Resistor Any 2 R3 R4 56 0805 SMD Resistor Any 2 R65 R66 50 Potentiometer shaft Any 3 C5 C6 100 nF 50 V 0603 SMD Capacitor Any 3 01 D2 D5 1N4007 SMA Default diode Any 3 R23 R34 R70 1 080
13. the pulse is set by software Gate current pulse length is important Its value must be set according to the minimum load current The load current has to reach the AC switch latching current value to keep the device ON after the gate pulse is removed Latching current 1 is specified in the AC switch datasheet ACS108 8S It is important to check this point for low power loads when RMS current is low and it takes a long time to reach the latching current level When gate current is removed before the load current reaches latching current the device may turn off Refer to the AN302 application note for further information on latching current The maximum value and length of the gate current the board can provide depends on power supply rating The power supply used in the demonstration board is able to provide 120 mA continuously in full range of the operating voltage DoclD024503 Rev 1 9 27 Functional description UM1631 4 4 1 4 2 10 27 Functional description Two different types of ACS Triac control are implemented Phase angle control and full wave control The gate control signal is synchronized with zero voltage crossing signal ZVC The MCU operation is also synchronized with ZVC signal ZVC signal is sent directly to the MCU input pin that is set as external interrupt Phase angle control Control of T1 T1635H and T2 ACST16 is based on phase angle control Figure 4 Phase angle control description Firing
14. wire is mentioned L L N N LN LN The board was tested during OFF state all AC switches were turned OFF Protective earth PE wire is not connected on the board which is why the couplings with PE were not tested Test results of the board without hardware modifications The target voltage level of the board immunity against burst spikes was 4 KV without any influence on the board performance class A MCU STM32F100C4T6B was not disturbed by the burst spikes up to 6 kV class A Burst spikes up to 8 kV caused the MCU to reset but it recovers without external intervention class B Reset procedure did not influence the immunity of the devices with higher immunity Table 4 shows immunity level of the ACS Triacs against the burst spikes The immunity is defined by voltage level of spurious triggering Table 4 Immunity level of ACS Triacs in class A STEVAL IHT005V2 254 VAC 50 Hz L L N N LN LN T1635H 150 W light bulb load gt gt 8BKV gt 8kv gt 8kv gt gt ACST16 150 W light bulb load gt 8kV gt gt 8kV gt 8kV 8kV gt 8 kV Z0109 75 W light bulb load 4 5 4A 1kV 3 7 4 6kV 4 0kV 3 7 kV ACS1 75 W light bulb load 67 gt 8kV 7 1kV 7 3kV 7 0 kV ACS2 150 W light bulb load gt 8kV gt 8kV gt 8kV gt 8kV 7 6kV 7T 1kV ACS3 150 W light bulb load gt 8kV gt 8kV gt 8kV gt 8kV 7 6kV 7 1kV
15. 0 8 800 V 10 mA overvoltage protected ACS device TO 92 package e Z0109MA 1 A standard 10 mA 40 in TO 92 package e VIPer16L an offline converter with 800 V avalanche rugged power section operating at 60 kHz The ACS108 and Z0109 are controlled in ON OFF mode with the buttons These devices control small loads like valves pumps and door locks The T1635H and ACST16 are controlled in phase control mode with potentiometers These devices control high power loads like drum motors or heating resistors DoclD024503 Rev 1 Ly UM1631 Board features and objectives 1 2 1 3 1 4 Board features The board key features and performances are Complete solution for 3 3 V control Input voltage range 90 265 VAC 50 60 Hz Negative 6 V 3 3 V VDC auxiliary power supply based on the VIPer16L in buck boost topology Total power consumption in standby mode is lower than 0 5 W for 264 V 50 Hz 48 pin 32 bit value line family STM32F 100C4T6B MCU as main controller Zero voltage switching ZVS interrupt to synchronize MCU events with voltage mains 1x T1635H 6T and 1 x ACST1635 8FP for phase control of high power loads 5 discrete power level states with soft change for phase angle controlled devices 1 20109 and ACS 108 for full wave control of low power loads 1x relay for demonstration of the board noise robustness Red LED to show that the board is supplied from mains Green LED for each ACS ACST Triac to
16. 2 ACS 2 SWITCHTIME 50HZ i ACS 2 SWITCHTIME 60HZ 1 6 16 ACS3 ACS 3 SWITCHTIME 50HZ 2 20 ACS 3 SWITCHTIME 60HZ 1 6 16 Z0109 20109 SWITCHTIME 50HZ 2 20 Z0109 SWITCHTIME 60HZ 1 6 16 ACST16 ACST16_SWITCHTIME_50HZ 1 10 ACST16 SWITCHTIME 60HZ 0 8 8 T1635H T1635H SWITCHTIME 50HZ 1 10 T1635H SWITCHTIME 60HZ 0 8 8 1 The timer step is 100 us q DocID024503 Rev 1 11 27 Power supply consumption UM1631 5 5 1 5 2 12 27 Power supply consumption Max output current and standby consumption Non isolated SMPS based on the VIPer16 in buck boost topology is designed to provide output voltage of 6 V Maximum output current is 120 mA 3 3 V voltage supply necessary to supply MCU consists of linear regulator LM337 Standby consumption has been measured in full range of the supply voltage The standby power consumption fulfills the requirement of maximum total power consumption to be below 500 mW Total power consumption of the board in standby mode at supply voltage of 264 Vrms 50 Hz was 499 mW output current 10 mA at output voltage 6 V The power supply uses mains voltage for self supply from high voltage current generator Standby power consumption can be reduced by using the configuration with VIPer16 supply made from the low voltage side Refer to the AN2872 application note and VIPer16 datasheet for further information on power supply design Gate voltage impact on gate current Gate voltage Vcr varies with load cur
17. 5 SMD Resistor Any 4 J1 J2 J3 J4 ARK300V 3P Three pole terminal Any 4 ee R16 15 0805 SMD Resistor Any R13 R19 R43 5 R51 R60 75 Q 0 6 W Resistor Any R61 R62 R63 5 R64 R68 100 0805 SMD Resistor Any C10 C13 C16 6 C20 C22 C24 10 nF 50 V 0805 SMD Capacitor Any C15 C25 C26 6 C27 C28 C29 100 nF 50 V 0805 SMD Capacitor Any D7 D8 09 LED 0805 green p10 011 012 20 mA Dees ree Any 6 R11 R26 R33 STIP line 2x Short circuit n R41 R50 R59 jumper connector y R21 R27 R36 6 R42 R45 R46 10 kQ 0805 SMD Resistor Any R35 R37 R40 6 R44 R47 R52 510 00805 SMD Resistor Any C32 C33 C34 7 C35 C36 C37 10 nF 50 V 0805 SMD Capacitor Any C38 24 27 DoclD024503 Rev 1 UM1631 STEVAL IHT005V2 schematic Table 9 Bill of material continued ae Designator Value Description Vendor Order code R20 R22 R53 7 R54 R55 R56 4 7 0805 SMD Resistor Any R67 R24 R25 R29 9 R38 R39 R48 56 Q 0805 SMD Resistor Any R49 R57 R58 3V3 6 V A2 T1 A2 T3 51 G 52 G_ACS3 G_T1 G_T2 G_T3 L 18 N VDD Test point Test point RS 262 2179 OUT 51 OUT ACS2 OUT ACS3 OUT T2 VDD ZNC 1 n 16 A Triac 7 STMicroelectronics T1635H 6T 1 T2 16 A ACST ST ACST1635 8FP 1 T3 1A Triac Standard 4Q Triac ST Z0109MA 1 TR1 P6KE400CA Transil ST P6KE400CA 1 Jua Monolithic AC DC leg VIP
18. ay The dV dt observed during turn off is 1 kV us Observed peak voltage during turn off was 1300 V The dV dt observed during turn on was 4 kV us The load was 1 4 inductor with serial resistance 12 RMS current 0 52 A The Triacs and ACS ACST switches were not disturbed by these spikes Figure 7 dV dt behavior during relay turn off 4 LL LILILILILILILILA Li paren ng LILILILILILLI TERT ere HACER PNE Ch1 S m 9 Ch2 2007 M 1 0ys 2 505 5 400ps pt Chi 110 DoclD024503 Rev 1 17 27 Board immunity performances UM1631 Figure 8 dV dt behavior during turn on XS S BG 7 T B ir 117 ire T Load current 100 mA div Y W 4 m 1 ral Relay voltage 500 V div m E E 4 L 4 L 1141 LL 1 1 Ll 1 L 1 L Ll 1 1 L1 LL 1 1 LLLI 1 LI l 1 Ll l 1 1 Chi 100 Ch2 500 M 10ms2 5MS s 400nsipt Ch2 5007 18 27 DoclD024503 Rev 1 STEVAL IHT005V2 schematic UM1631 Appendix A STEVAL IHT005V2 schematic Schematic A 1 9 STEVAL IHT005V2 schematic igure F LA6SVLONV
19. ayout Figure 10 STEVAL IHT005V2 top layer 5 22222 DoclD024503 Rev 1 Ly UM1631 STEVAL IHT005V2 schematic A 3 Test point lists Table 7 Test points definition Name Definition G_T1 Control signal of T1 T1635H ZVC Zero Voltage Crossing signal 6V Reference of SMPS output voltage N_VDD Neutral reference and Vpp 3 3V Reference for MCU power supply A2 T1 A2 terminal of T1 VDD MCU power supply voltage OUT T2 OUT terminal of T2 ACST16 G T3 Control signal of T3 Z0109 A2 T3 A2 terminal of T3 G T2 Control signal of T2 ACST16 G ACS1 Control signal of ACS1 OUT ACS1 OUT terminal of ACS1 G ACS2 Control signal of ACS2 OUT ACS2 OUT terminal of ACS2 G ACS3 Control signal of ACS3 OUT ACSS3 OUT terminal of ACS3 Line LINE voltage A 4 Gate resistor calculation The gate resistor value must be defined within the equation below to ensure to apply a gate current higher than specified for the worst operating conditions Gate resistor calculation R lt q Ig 0 C 1 5 DoclD024503 Rev 1 STEVAL IHT005V2 schematic UM1631 Assumptions for calculation Vpp Min S minimum supply voltage typically 3 V for 3 3 V power supply taking into account dispersion of resistors at LM337 Vgr Max 1 0 V maximum gate voltage that must be applied b
20. er16LN converter 1 U2 Voltage regulator ST LM337 1 U3 32 bit MCU ST STM32F100C4T6B 2 D3 D4 Fast diode ST 5 1 06 ACS1 52 3 ACS3 0 8 A switch ST ACS108 8SA 20 x 20 x 30 mm 2 6 K W Heatsink Any 4 Distance columns An 10 mm KDI6M3X40 Y 4 screw 6 mm long Any OC ev ky DoclD024503 Rev 1 25 27 Revision history UM1631 Revision history Table 10 Document revision history Date Revision Changes 01 Oct 2013 1 Initial release 26 27 DoclD024503 Rev 1 Ly UM1631 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
21. etween gate and A1 or COM e Vg 0 4 V maximum MCU I O port voltage when turned to low level given by the datasheet 0 4 V for STM32F100 Note Vo value of 0 4 V is used also for BC547B buffer transistor control e to iS tolerance of used resistor typically 1 or 5 e lg 0 C is gate current for minimum ambient temperature normally 0 C refer to Triac family datasheet curve Standard resistor choices according to the above equation and assumptions are shown in Table 8 Table 8 Gate resistor definition for each device Tolerance of Rg Rg 0 Rg standard T1635H 1 31 7 2x15 5 30 4 2x15 ACST16 1 31 7 2x15 5 30 4 2x15 ACS108 1 112 2 2x56 5 107 8 2x51 1 112 2 2x56 Z0109 5 107 8 2x51 In the STEVAL IHTO05V2 demonstration board tolerance resistors of 1 are used 22 27 DoclD024503 Rev 1 Ly UM1631 STEVAL IHT005V2 schematic A 5 Bill of material Table 9 Bill of material p Designator Value Description Vendor Order code 1 C3 N A Capacitor 1 P1 N A Header 4 pin 2 C17 C18 N A Capacitor 2 R6 R7 N A Resistor 2 R9 R30 N A Resistor 1 C11 X2 47 nF 305 V Capacitor EPCOS B32922C3473K000 6 1 2 10 nF 305 V Capacitor EPCOS B32921C3103K000 1 C1 100 nF 50 V 0805 SMD Capacitor Any 3 C4 C30 C31 1nF 50V 0805 SMD Capacitor Any 1 C8 1 uF 16 V 0603 SMD Capacitor
22. for industrial installation The technical data as well as the information concerning the power supply and working conditions should be taken from the documentation included in the kit and strictly observed Installation Installation instructions for the STEVAL IHT005V2 demonstration board must be taken from the present user manual and strictly observed The components must be protected against excessive strain In particular no components are to be bent or isolating distances altered during transportation handling or use No contact must be made with electronic components and contacts The STEVAL IHTOO5V2 demonstration board contains electrostatically sensitive components that are prone to damage through improper use Electrical components must not be mechanically damaged or destroyed to avoid potential risks and health injury Electrical connection Applicable national accident prevention rules must be followed when working on the mains power supply The electrical installation must be completed in accordance with the appropriate requirements e g cross sectional areas of conductors fusing PE connections In particular the programming device must be disconnected from the board JTAG connector when the board is plugged into the mains Board operation A system architecture which supplies power to the demonstration board must be equipped with additional control and protective devices in accordance with the applicable safety requirements
23. ng signal Noise suppressor influence The noise suppressor circuit that consists of X2 capacitor 10 nF C2 C12 C14 C19 C21 C23 and resistor 75 Q R13 R19 R28 R43 R51 R60 has significant influence on burst immunity of the devices as shown in the tests results below to compare with Table 5 results Table 6 Immunity of the high power devices without RC noise suppressor STEVAL IHT005V2 Vin 254 VAC 50 Hz L L N N LN LN T1635H 150 W light bulb load 1 7 kV 1 6 kV 1 9 kV 1 7 kV 2 1 kV 1 7 kV ACST16 150 W light bulb load 4 6 kV 3 5 kV 4 8 kV 3 1 kV 3 3 kV 3 1 kV DoclD024503 Rev 1 Ly UM1631 Board immunity performances 6 3 5 6 3 6 Gate filtering circuit influence The gate filtering circuit has an influence mainly on sensitive devices When the gate filtering circuit is removed the immunity of Z01 decreases to 2 kV and immunity of ACS108 is decreased to 4 kV Gate filtering circuit is not mandatory to pass IEC 61000 4 4 tests for ACS108 There is no influence 35 mA devices when the gate filtering circuit is removed Immunity to relay switching Relay is connected on the board The relay cannot be controlled in zero voltage mode Switching of the relay produces very high dV dt other devices must be immune to this type of noise Immunity tests of the devices against relay switching have been performed Figure 7 shows turn off behavior of the rel
24. perate after passing all initialization routines like mains frequency recognition that take approximately 2 s Potentiometer R65 controls T1 T1635H and potentiometer R66 controls T2 ACST16 Output power level is adjusted by changing the position of the related potentiometer Power regulation is divided into 5 steps where position 1 means minimum power and position 5 means maximum power LED 011 for T1 T1635H and LED 012 for T2 ACST16 signal Ly DoclD024503 Rev 1 7 27 Getting started UM1631 Note that the gate control signal is applied If the load example motor is running and the LED lights up it indicates the MCU properly controls the Triac s Blue black and white buttons control the 3x ACS108 and Z01 in ON OFF mode with zero voltage synchronization The blue button S1 controls ACS1 black button S2 controls ACS2 black button S3 controls ACS3 and white button S4 controls T3 The different colors are used for easy recognition of the controlled device ACS2 and ACS3 are controlled with 2 ms gate pulses This is sufficient for loads with RMS current approximately in the range of 100 mA 500 mA Smaller loads should be controlled with ACS1 which has continuous gate control T3 is controlled with 2 ms pulses and is used for comparison with ACS2 and ACS3 behavior LED D10 for T3 Z01 LED D7 for ACS1 ACS108 8S LED D8 for ACS2 ACS108 8S and LED D9 for ACS3 ACS108 8S signals that the gate control signal is applied
25. rent as shown in Figure 4 Figure 6 This variation is significant and cannot be neglected mainly for devices that are controlled in DC mode and with low power supply level such as 3 3 V Figure 6 Example of variation with load current in quadrants 2 and 3 0 2 A RMS for a 20103 T 85 C Igo 7 5 mA Tek RR wr 1505 mA div V 200 mV div G 1 200 inA div Time 10 ms div 200 200mA Ov 10 0 5 mv sham etum roam iram wer 0 000005 10 Min 480mv 87 4 688m 704m 178m t 0 00000 5 Edge e DC 68 0mA SOT S B tad DoclD024503 Rev 1 Ly UM1631 Power supply consumption ACS devices have lower Vcr variation with load current than Triacs and that is why they are more suitable for 3 3 V applications as the gate current variation is lower Refer to the AN2986 application note for further details and for gate resistor calculation 5 3 Pulsed gate control and average gate current consumption Table 3 gives the initial gate current pulse widths for each AC switch and the maximum pulse width that may be programmed to keep the overall consumption below the maximum capability of the VIPer16 supply Table 3 Application current consumption Gate m let Gate current Maximum Max gate Device PCB resistor T 25 C Tj 0 c Pulse pex ee label o 1 duration current dura
26. show that the device is turned ON JTAG programming connector External wire loop for gate current measurement 2 bus hardware software ready 18 test pins IEC 61000 4 4 precompliance test passed burst up to 8 kV IEC 61000 4 5 precompliance test passed surge up to 2 kV RoHS compliant Targeted applications Targeted applications are mid end and high end washing machines dishwashers dryers and coffee machines Optionally this board targets any home appliance application where the STM32 MCU controls any type of Triac ACST ACS Operating conditions The board operates in nominal line voltage 110 V 230 V in both 50 60 Hz power nets Line voltage 90 264 V 50 60 Hz Operating ambient temperature 0 C to 60 C Nominal loads power for 230 V voltage ACST1635 8FP 2050 W T1635H 6T 2830 W Z0109MA 96 W ACS108 8SA 105 W DoclD024503 Rev 1 5 27 Safety instructions UM1631 2 2 1 2 2 2 3 2 4 Note 6 27 Safety instructions Warning The high voltage levels used to operate the STEVAL IHT005V2 board could present a serious electrical shock hazard This demonstration board must be used in a suitable laboratory by qualified personnel only familiar with the installation use and maintenance of power electrical systems Intended use The STEVAL IHT005V2 demonstration board is a component designed for demonstration purposes only and not to be used either for domestic installation or
27. tion DC ms mA mode ms T1635H 6T T1 30 35 50 1 5 ACST1635 8FP T2 30 35 50 1 5 Z0109MA T3 112 10 15 2 3 10 ACS108 8SA ACS1 112 10 15 10 15 10 ACS108 8SA ACS2 112 10 15 2 3 10 ACS108 8SA ACS3 112 10 15 2 3 10 1 Device is controlled in phase angle control long pulse is not desired Current consumption of the MCU and six signal LEDs when turned ON was estimated at 25 mA Total current consumption of the board when all Triacs AC switches are ON with maximum gate current pulse is 95 mA T1 and T2 have 1 ms gate current pulse as described above DoclD024503 Rev 1 13 27 Board immunity performances UM1631 6 6 1 Board immunity performances Hardware and software features to increase immunity Software features 6 2 14 27 Software features to improve board immunity are e Filtering procedure for button and potentiometer control e Software watchdog Hardware features to improve board immunity are e Input varistor e ACS ACST technology and Transil as an option for T1635H 6T 47 nF input X2 capacitor e Noise suppressor circuits are implemented 10 nF X2 capacitor and 75 resistor e R C R filter on gate implemented RG 2 10 nF RG 2 Layout golden rules for immunity improvement e Power tracks far from signal tracks Vgg map e Noise suppressor and R C R gate filter close to AC switches and Triacs e Input MCU pins have implemented filter capaci
28. tor 10 nF e Any branch in the Vpp map has implemented a capacitor to decrease the Vpp variation Surge tests results Standard IEC 61000 4 5 tests were performed with surge level of 2 kV which is required for home appliances Mains voltage used for the tests was 230 Vrms 50 Hz The ACST16 device is protected against overvoltage spikes up to 2 kV with implemented crowbar technology See the ACST16 datasheet for further details ACS devices are protected against overvoltage spikes up to 2 kV with implemented crowbar technology See the ACS108 8S datasheet for further details The 201 Triac is protected thanks to the noise suppressor circuit and high impedance of the load refer to the AN437 application note for snubber design The T1635H is protected with Transil PEKE400CA This is a different implementation of the crowbar technology The purpose here is to propose overvoltage protection with a crowbar technology This method presents the advantage of not aging contrary to the varistor technology DoclD024503 Rev 1 Ly UM1631 Board immunity performances 6 3 6 3 1 6 3 2 6 3 3 Burst tests results Test procedure Standard IEC 61000 4 4 tests were implemented The tests were performed at a frequency of 100 kHz and power supply voltage of 254 Vrms 50 Hz Parameters of the spikes Ty 0 7 ms T 300 ms All affected couplings were tested Spikes were applied against the plate and related polarity and the mains
29. ts and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2013 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Philippines Singapore Spain Sweden Switzerland United Kingdom United States of America www st com q DocID024503 Rev 1 27 27
Download Pdf Manuals
Related Search