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© 2012 - 2013 Mirrorcle Technologies, Inc. All rights reserved.

Adjusting bias voltage

Connect BNC inputs to amplifier

Apply 0V to both BNCs or leave them both unplugged

Ensure high voltage is ON by the Enable Override switch on front 
panel

Monitor an output pin (e.g. X+) and turn bias-adjusting 
potentiometer (next page,) until the output voltage (DC) is at the 
desired level.  

Double check that all channels, X+ X- Y- Y+, have the same bias.

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Содержание Bias-Differential Quad-Channel (BDQ) Amplifier 4.x

Страница 1: ...rcle Technologies Inc Bias Differential Quad Channel BDQ Amplifier 4 x Dr Veljko Milanovi Abhishek Kasturi Mirrorcle Technologies Inc February 2013 2012 2013 Mirrorcle Technologies Inc All rights rese...

Страница 2: ...igned and optimized for the driving of Mirrorcle Technologies MEMS mirrors at voltages up to 140V whether from a National Instruments DAQ card or directly from BNC inputs The amplifier does not requir...

Страница 3: ...nector input Low power powered by NI DAQ card when used or from a low power 5VDC adapter Four high voltage output channels 0V 150V Outputs differential pairs of 7 5X amplified input voltages biased at...

Страница 4: ...ies Inc All rights reserved External Inputs Using a 3 5mm TRS to Dual RCAF breakout and a RCA to BNC adaptors for input signals Amplifier Inputs Power supply 5VDC 68 Pin NIDAQ Input from compatible Na...

Страница 5: ...Y Input impedance 16 k X input DAQ AO0 Y input DAQ AO1 HV Enable DAQ P1 0 For DAQ input option power is provided from the NIDAQ card and external 5VDC adapter should NOT be plugged in The stereo jack...

Страница 6: ...ltage range 10V to 10V on AO0 X and AO1 Y Input impedance 16 k X input red BNC Y input white BNC For External input option external 5VDC adapter should be plugged in The stereo jack to 2x BNC connecto...

Страница 7: ...orcle Technologies Inc All rights reserved Bi Directional Driving with Unipolar Voltages 7 HV_B is high HV_A is low Mirror rotates in X direction HV_A is high HV_B is low Mirror rotates in X direction...

Страница 8: ...Hz Output Impedance 1 k Default bias setting of 70V limits appropriate Input voltages to Vbias Gain to Vbias Gain 9 33 to 9 33 volts For this range of inputs output will swing from 0 to 140V For devic...

Страница 9: ...put 8 Pin Header Pin Name Description 1 HV_A X High Voltage Output for Channel X 2 GND Ground 3 HV_B X High Voltage Output for Channel X 4 GND Ground 5 HV_C Y High Voltage Output for Channel Y 6 GND G...

Страница 10: ...SPECIFIC INSTRUCTIONS BDQ PicoAmp4 x 10...

Страница 11: ...NG DO NOT ENABLE HIGH VOLTAGE IF THE X AND Y INPUTS ARE AT NOT SET AT OR NEAR 0V SUDDEN VOLTAGE DIFFERENCE ON OUTPUT PAIRS MAY DAMAGE MEMS MIRROR 5 Now all high voltage outputs X X Y Y should be biase...

Страница 12: ...origin voltage of 0V to analog inputs X and Y 2 Disable the high voltage by setting the High Voltage switch to the off position WARNING DO NOT UNPLUG OR DISABLE ANALOG INPUTS PRIOR TO THIS STEP TO AV...

Страница 13: ...max for a given device on page 1 e g 125V 2 To obtain analog input voltage range 1 Maximum Vin Vmax 7 5 9 333 2 Minimum Vin 9 333 Vmax 7 5 3 For example above the highest acceptable input voltage for...

Страница 14: ...2012 2013 Mirrorcle Technologies Inc All rights reserved Internal user adjustable points Power supply input 14 bias regulating pot currently set for 70V output bias...

Страница 15: ...Apply 0V to both BNCs or leave them both unplugged Ensure high voltage is ON by the Enable Override switch on front panel Monitor an output pin e g X and turn bias adjusting potentiometer next page u...

Страница 16: ...he DAQ input and if your NI DAQ card has correlated DIO feature SMA connector is directly connected to DAQ card s P0 0 DIO It can be used as a digital INPUT or digital OUTPUT Mirrorcle Tech software u...

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