High Voltage Products

Trek 30/20A

Non-Inverting High Voltage Amplifier, Output Voltage 0 to ±30 kV DC or Peak AC

Advanced Energy's DC-stable Trek 30/20A high voltage amplifier offers a low-noise operation, expansive bandwidth, and a high slew rate. It's ideal for numerous applications including high voltage cable and component testing, and plasma studies.

  • Output Voltage: 0 to ±30 kV DC or peak AC
  • Output Current: 0 to ±20 mA DC or peak AC
  • Slew Rate: Greater than 550 V/µs
  • Large Signal Bandwidth: DC to greater than 2.5 kHz (2% distortion)
  • Gain: 3000 V/V fixed
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The high voltage amplifier Trek® 30/20A is DC-stable and has an all-solid-state design that enables a high slew rate, wide bandwidth, and low-noise operation. It features a non-inverting a fixed gain of 3000 V/V. It is protected against overvoltage and overcurrent conditions generated by active loads or output short circuits to the ground. Precision voltage and current monitors provide low-voltage representations of the high-voltage output and load current for monitoring purposes or feedback signals in a closed-loop system.

Achieve accurate output responses and high slew rates demanded by reactive loads via the four-quadrant active output. It sinks or sources the current to reactive or resistive loads throughout the output voltage range.


  • Benefit from a closed-loop system and achieve high accuracy
  • Take advantage of complete solid-state design and maintenance-free operation
  • Rely on ultra-accurate outputs thanks to low-output noise
  • Protect against overvoltage and overcurrent conditions generated by active loads
  • Drive capacitive loads via a four-quadrant output


  • Settling time (to 1%) is less than 200 µs for a 0-30 kV step
  • Dynamically adjust to optimize AC response for various load parameters
  • Local and remote high voltage On/Off capabilities
  • NIST-traceable calibration certificate provided with each unit
  • Short-circuit protection to safeguard equipment

Select specifications are shown below. Please see product data sheet for additional specifications.

  • Performance

    Output Voltage Range

    0 to ±30 kV DC or peak AC

    Output Current Range

    0 to ±20 mA DC or peak AC

    DC Voltage Gain

    Better than 0.1% of full scale

    Slew Rate

    Greater than 550 V/µs

    Large Signal Bandwidth (2% distortion)

    DC to greater than 2.5 kHz

  • Voltage Monitor


    1 V / 3000 V

    DC Accuracy

    Better than 0.1% of full scale

    DC Offset Voltage

    Less than ±5 mV

  • Current Monitor


    0.5 V/mA

    DC Accuracy

    Better than 2% of full scale

    Offset Voltage

    Less than ±10 mV

  • Mechanical

    H x W x D

    103.9 x 43 x 87 cm (40.9 x 17 x 34 in)
    Depth dimension includes wheels, handles, and spacing for airflow


    Apprx 73 kg (160 lb) 

  • Electrical

    Line Voltage

    Factory set for one of two ranges:
    104 to 127 VAC or 180 to 250 VAC at 48 to 63 Hz (specify when ordering)

    Power Consumption

    Max 1800 VA

    AC Line Receptacle

    Standard 3-prong with integral fuse holder

  • Operating Conditions


    0 to 40°C (32 to 104°F)

    Relative Humidity

    To 75% (non-condensing)


    To 1524 meters (5000 ft)

  • Typical Applications

    • Dielectric studies
    • Electron beam ion traps and ion sourcing
    • Electrospinning
    • Electrostatic deflection (including ion beam steering)
    • Electrostatic flame control
    • Electrostatic levitation
    • Electrostatic precipitation
    • High-voltage cable testing
    • High-voltage component testing
    • Plasma studies (including dielectric barrier discharge)

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.


Amplifier Selection Calculator

To help you select the appropriate Trek amplifier, we created this calculator. It uses peak-to-peak voltage to help calculate values associated with driving capacitive loads. If you have any difficulty with this software or would rather not do the download, please use the step-by-step calculator procedure.

Documents & Support

View All Trek 30/20A Accessories

Global Support & Services

Maximize fab productivity and capital equipment ROI with world-class support through each product lifecycle stage — from startup to long-term operation. Our service offerings are based on more than three decades of precision power and applications expertise.

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Accelerate tool installations and process development programs, or address specific applications concerns with Advanced Energy's dedicated applications consultants and engineering staff. Benefit from on-site reviews, analyses, and consultations.

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Product Support

U.S.: +1 800 446 9167
Asia: +86 29 8874 1895
China: 400 8899 130
EMEA: +44 800 032 1546
U.K.: 08000 321 546

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