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    Address:Rm. 2-20901, Tsinghua Science Park, Technology Road 65, High-tech District, Xi'an, Shaanxi Province, China, 710075
    Tel:86-029-8844 4525
    86-029-8868 8901
    Fax:86-029-8868 8683

    PRA high voltage power supply

    Maximum output voltage(KV):1,3,5,6,8


    1. Output voltage up to ±8KV, power 0.5W-10W

    2. Optional RS-232, RS-485 control
    3. Quickly reverse the polarity when the high voltage is turned on
    4. The fastest reversal time can be 8ms
    5. Excellent adjustment performance, low ripple
    6. With voltage and current monitoring terminal
    7. Local or remote control
    8. Arc and short circuit protection
    9. OEM customization available
    10.CE certification


Product introduction



Wisman PRA auto-reversing power supply is the ideal choice for OEM applications. The power supply is specially designed to meet the demands of applications requiring hot-switching reversible polarity output voltage. Through the polarity control signal provided by the interface connector, the output polarity of the power supply can be reversed quickly and safely. The low ripple specification of the PRA series makes it ideal for mass spectrometry, especially for security detection systems, dynodes, sample ionization, and capillary electrophoresis and electrostatic printing applications.

USB2.0, RS-232, RS-485 are available for selection.The reversal time can be 10ms, 25ms, 50ms, 100ms, 250ms, 500ms, 1s. PRA series can be customized according to customer requirements, such as lower ripple coefficient.


1. DC/DC output voltage up to±8KV, power 0.1W-0.8W

2. RS-232, RS-485 are available for selection

3. rapid reversal of polarity in high voltage open state

4. fastest reversal time can reach 8ms

5. excellent adjustment performance, low ripple

6. voltage and current monitor port

7. local or long-range control

8. electric arc and short-circuit protection

9. customized according to user requirements

10. CE certification


Mass spectrometry, capillary electrophoresis, electron microscope, electrostatic printing, electron multiplier, electrostatic discharge(ESD), electrostatic research, DNA analysis, microchip electrophoresis, electricity texture, electrostatic chuck (E-Chuck), bioscience, medical and chemical, scientific experiments, industrial application.


USB        USB Interface          

RS232     RS-232 Interface

RS485     RS-485 Interface

5VPM      0-5V Scale given display


Input: 24Vdc±10% .

Output: ±1KV,±3KV,±5KV,±6KV,±8KV, customized for ±10KV              

Polarity: Auto reversible via command, time of reversal for 10ms,25ms,50ms,100ms,250ms,500ms,1s

Power: 0.1W,0.3W,0.5W,0.6W,0.8W

Ripple: 0.01% Vp-p, lower ripple can be customized

Stability: 0.1% per hour after an hour warm-up

Temperature coefficient: ≤25ppm/℃

Voltage Regulation:

         Load: 0.1% of output voltage no load to full load

         Line: ±0.1% for ±2% change in input voltage


         Operational: 0℃ to +40℃

         Storage: -40℃ to +85℃

Humidity: 20% to 85% RH, non condensing

Cooling: Free air Convection

Dimensions: 0.98”H ×3.94”W ×4.96”D

        (25.00mm ×100.00mm ×126.00mm)

Weight: 600g

Interface Connector: 8 pin quick connector

For more information of Wisman or high voltage products, please call at 086-029-88444525 or visit our website: www.wsmhv.com

Wisman is a high voltage power supply manufacturer, we are committed to the production of micro-modules, high voltage power supply modules, X-ray generator, rack mount voltage power supply, special customized high voltage power supply, high voltage accessories, etc. Wisman designs, manufactures and custom-makes standard high voltage power supply products, power range from 100mW to 200kW, voltage range from 60V to 500kV. The application fields of Wisman products cover medical, industrial, scientific research and other fields. You can purchase a variety of specifications in one-stop high-voltage power supplies from Wisman.

We have a high-voltage power supply research and development team, high-voltage power supply development software and software for testing. High voltage insulation technology and zero current resonance technology, making our high voltage power supplies maintain high stability, low ripple, low EMI, small size, low loss, high efficiency and long life. Wisman is competitive in price and a great ideal for OEM customers.

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