PD32 - 32 Channel Piezo Driver Manual and Specifications
Contents
1. 106 mA per channel 50 kHz 120 Vpp 120 kHz 19 V us 15 V V 53 kOhm 5 mV Unlimited 200 uV RMS 1uF Load Bipolar Output 50V to 140V 75 mA per channel 53 mA per channel 50 kHz 240 Vpp 120 kHz 38 V us 20 V V 6 25 kOhm 5 mV Unlimited 300 uV RMS 1uF Load Short circuit and thermal overload 32 Analog inputs shutdown command 32 HV Analog outputs overload monitor Industry standard DB 37 input and DD 78 output 40 to 60 C 40 to 140 F Non condensing humidity Dimensions 212 x 304 8 x 88 mm Weight 2kg Environment 4 Output Voltage Range The output voltage range is configurable between 50V and 140V and the load can be either grounded or floating For peak to peak voltages less than 140V the grounded load configuration is recommended since this provides greater current The floating load configuration is required for the 100V and 140V ranges The desired configuration should be specified at the time of ordering 4 1 Ground load configurations In the grounded load configurations the actuator connections are illustrated below The negative output is internally grounded Outi gt Out1 The desired output voltage range can be selected from the following table Ini Piezo 1 Min Voltage Max Voltage Order Code 0 140 PD32 140 120 PD32 120 100 PD32 100 70 PD32 70 50 PD32 50 20 120 PD32 20 120 20 100 PD32 20 100 72 72 PD32 722. 72 48 48 PD32 48 48 Three wire bender actuators can be driven using the following connection diagram The HV and HV bias voltages are the minimum and maximum voltages listed in the table above and are accessible on the output connector HV 4 2 Floating load configuration The floating load configuration is useful for achieving higher peak to peak voltage swings The connection diagram is illustrated below Do not connect either of these signals to ground for example an oscilloscope probe Piezo 1 The desired output voltage range can be selected from the following table Min Voltage Max Voltage Order Code 140 140 PD32 140 140 100 100 PD32 100 100 5 Input Connection Diagram The front panel input connector is an industry standard DB37 Female Connector TE 1658612 1 Any Male DB 37 cable plug is compatible The connection diagram is illustrated below Signals Input Connector Notes Analog Inputs 1 to 32 Pins 1 to 32 10V max Ground 33 34 Non Connected 35 Digital disable command Pin 36 3 3V or 5V logic Overload indicator Pin 37 5V logic o Inputs Disable o Overload e Ground ooo 0 00 00 00 00 00 00000 o o ooo 0 0o 0 00 00 00 000 6 Output Connection Diagram The front panel output connector is an industry standard DB37 Female Connector TE 5748483 5 Any Male DD 78 cable plug is compatible The connection diagram is illustrated below Signals Connector 1 Notes V
3. HV 38 39 For driving benders V Outputs 17 to 32 positive 40 55 o Ground o Positive Outputs o HV o Negative Outputs o HV 20 oOOoOo0ooooooooooooooooo 1 39 0000000000000000000 21 59 O O O O O O O O O O O O O O O O O O oO o 40 TS Oo0o00000000000000000 60 7 Output Current The peak output current is 150 mA per channel in the grounded load configuration or 75 mA per channel in the floating load configuration The maximum RMS current is 106 mA in the grounded configuration and 53 mA in the floating load configuration The maximum simultaneous output current from all channels is 1 5 A 8 Power Bandwidth The nominal slew rate of the PD32 in the grounded load configuration is 19 V us Therefore the unloaded maximum frequency sine wave is 19 x 10 YU n max That is the power bandwidth for a 120 Vp p sine wave is 50 kHz In the floating load configuration the slew rate is doubled to 38 V us therefore the power bandwidth for a 240 Vp p sine wave is 50 kHz With a capacitive load the power bandwidth is limited by the output current The maximum frequency sine wave is lpk for ee RV yp CL where lav is the peak current limit V y is the peak to peak output voltage and C is the effective load Capacitance The power bandwidth versus load capacitance is listed below Load Peak to Peak Voltage Grounded Load Peak to Peak Voltage Floating Cap 10 nF 30 nF 31 kHz 15 kHz 11 kHz
4. a single or side by side arrangement with another adaptor or the amplifier itself A single amplifier or adaptor can be mounted with the PD32 Rack1 kit Two adaptors amplifiers or a combination of both can be mounted side by side with the PD32 Rack2 kit 12 Signal Adaptors The signal adaptors allow a direct connection to common multi channel DAC cards Standard adaptors are listed below however custom adaptors can also be created Manufacturer DAC Card Signal Adaptor Notes National Instruments PCI 6723 PD 6723 Requires NI SH68 C68 S Cable National Instruments PXI 6723 PD 6723 Requires NI SH68 C68 S Cable The adaptors are contained in a compact desktop enclosure which can be mounted in a side by side arrangement to another adaptor or an amplifier A single amplifier or adaptor can be mounted with the PD32 Rack1 kit Two adaptors amplifiers or a combination of both can be mounted side by side with the PD32 Rack2 kit 13 Waranty The PDC32 is guaranteed against manufacturer defects for a period of 12 months
5. 100 nF 9 5 kHz 4 7 kHz 3 4 kHz 300 nF 3 1 kHz 1 5 kHz 1 1 kHz 1 uF 3 uF 10 uF 30 uF 50 95 kHz 950 Hz 310 Hz 96 Hz 32 Hz 100 47 kHz 470 Hz 150 Hz 48 Hz 16 Hz 140 34 kHz 340 Hz 114 Hz 34 Hz 11Hz Cap 10 nF 30 nF 100 nF 300 nF 1 uF 3 uF 10 uF 30 uF 100 23 kHz 7 9 kHz 2 3 kHz 790 Hz 230 Hz 80 Hz 24 Hz 8 Hz 200 11 kHz 3 9 kHz 1 1 kHz 390 Hz 119 Hz 40 Hz 12 Hz 4 Hz 280 8 5 kHz 2 8 kHz 850 Hz 284 Hz 85 Hz 28 Hz 9 Hz 3 Hz Table 1 Power Bandwidth versus Load Capacitance Grounded and Floating Load Configuration In the following figures the maximum frequency periodic signal is plotted against the peak to peak voltage E E E F FFFFPE E E E F FFFPE E F E F FFFPE F F 10 uF 3uF 1uF 300nF 100nF 30nF i20 4 4 IVA HII 80 60 Peak to Peak Voltage V OF E F F rrrrrrF E E E KK KK KE E E KK KKK E E LL 10 10 10 10 Frequency Hz Figure 1 Maximum frequency versus voltage and capacitance Grounded Load E E E E E E FEEE E E E E E F EEE E E E E FFFFE E E TO E o SENE bcp d A EE A A 200 fo c i dH E e e 4 Peak to Peak Voltage V E e ML 05 gt F F E KK KKK E E r E rrrrrF r E E KK KKK E E E 10 10 10 10 Frequency Hz Figure 2 Maximum frequency versus voltage and capacitance Floating Load 9 Small Signal Bandwidth The small signal bandwidth for a range of capacitive loads
6. PiezoDrive PD32 32 Channel Piezo Driver Manual and Specifications PiezoDrive Pty Ltd www piezodrive com Contents DUNO le oleo 3 NER NPIS AN COS 3 SS ee elle e cm omm 4 A OBUDDUE VDIEIBS DLL e eee eee MUN EID MUN I UE 5 AL Grouna Sad E es osa Fr cet S NE E T TTE 5 4 2 Floating load configurato N urraca 6 5 Input Connection Diara seers E r AN 6 6 Output CONNECTION r cT 7 E OUUU UTNE rc 8 POMS FE A Ue c HTHH 8 9 Small Signal BandWidth ieiuesemndsireesesbrsaen ia nen Conse iio 10 10 BU eee PETE edo PN TET OO TE Em 11 11 e 0 y ELTE 11 12 dare Pa o Fs o Jue PEO Ue AP een ete eee 11 13 UE T e lt nn A nn A oo ETET 11 1 Introduction The PD32 is a high bandwidth low noise linear amplifier for driving up to 32 piezoelectric actuators The voltage range is configurable from 50V to 140V and includes asymmetric voltage ranges such as 20V to 120V The PD32 works seamlessly with common multi channel DAC cards and provides exceptional ease of use and compatibility with programming tools such as LabView and Simulink The compact size and 19 inch rack compatibility provides a comprehensive off the shelf solution for driving hundreds or thousands of piezoelectric actuators The PD32 is designed for demanding applications such as Adaptive Optics Acoustic Beam Forming Materials Testing Astronomy Ultraso
7. is listed below The small signal frequency responses are plotted in Figure 3 Load Signal Capacitance Bandwidth No Load 120 kHz 10 nF 90 kHz 30 nF 40 kHz 100 nF 11 kHz 300 nF 3 8 kHz 1 uF 1 0 kHz 3 uF 320 Hz 10 uF 62 Hz 30 uF 24 Hz Table 2 Small signal bandwidth 3 dB F F FFFFFE E E F FFFFFE E FEF EE ESE E E rE FEEEE E E d da i P PP 1 44 aaa Fo dE d E pde JQur 3uF dur 300nP 1 O0nF 30nF 10nF Magnitude dB je E EE ERE eo r ororrerref eoor Nu rr rrE Porro A 2 3 4 5 10 10 10 10 EN EPE REEERE F EEE RE EEE F FI TETTIFFPE F F Phase deg Frequency Hz Figure 3 Small signal frequency response 10 Overload Protection Each channel is protected against short circuit and thermal overload If the thermal overload on any channel engages the front panel indicator for that channel will illuminate In addition an overload on any channel will cause the overload signal pin 37 on the input connector to go high 5V The amplifier can also be disabled by applying a logic high 3 3V to 5V to the disable pin pin 36 11 Enclosure The PD32 has a side air intake and rear exhaust These vents should not be obstructed If sufficient air flow is not available the amplifier will enter a thermal overload state as discussed above The PD32 amplifier can be rack mounted in a single or side by side arrangement The DAC card adaptor can also be rack mounted in
8. nics and Vibration Control With an output current of 150mA per channel a large array of piezoelectric actuators can be driven simultaneously at high frequencies Positive and negative high voltage bias outputs are also included for compatibility with piezoelectric bender actuators Compatible Actuators Stack Actuators 60V 100V 120V 150V Plates and Tubes up to 140V Two Wire Benders up to 140V Three Wire Benders Up to 140V or 75V Each channel is individually protected against short circuit and thermal overload Status indicators on the front panel provide individual monitoring of all channels A digital status signal and external shutdown command is also accessible from the input connector to allow remote monitoring and control The input and output connectors are industry standard 37 Pin D Sub connectors which are straight forward to assemble Adaptors are available for industry standard 32 Channel DAC cards 2 Warnings Notes This device produces hazardous potentials and should be used by suitably qualified personnel under the supervision of an observer with appropriate first aid training Do not operate the device when there are exposed conductors 3 Specifications Output Voltage Peak Current RMS Current Power Bandwidth Signal Bandwidth Slew Rate Gain Input Impedance Input Offset Load Output Noise Protection Inputs Outputs Connectors Unipolar Output 50V to 140V 150 mA per channel
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