Electrostatic Products

Trek On-Board Controllers

High Speed, Low-Cost OBCs for ESVM and ESD Applications

Advanced Energy's Trek on-board controllers (OBCs) provide accurate, drift-free, high-speed, and low noise measurements. They can be used for electrostatic voltmeter (ESVM) and electrostatic discharge (ESD) applications.

  • Measurement Range: ±1.2 kV DC or peak AC
  • Speed of Response: Less than 5 ms for a 1 kV step change
  • DC Accuracy: Better than ±1% of full-scale


  • Overview
  • Technical Specs
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Trek OBCs offer non-contact voltage measurement by using a chopper-stablized, field-nulling technique that maintains DC stability and high accuracy over wide probe-to-surface variations. This technique assures no voltage loading and permits accurate measurements without the need to establish fixed probe spacing.



  • Use over a wide range of temperature and humidity conditions
  • No fixed probe spacing required
  • Use in various ESVM and ESD applications thanks to low profile PC board design



  • Customer-specified voltage monitor output ratios
  • Customer-specified probe to-surface separations
  • Customer specified PC board size/configuration
  • Customized probe mounting fixtures

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

  • Performance

    Measurement Range

    ±1.2 kV DC or peak AC

    Response Speed

    Less than 5 ms for a 1 kV step change

    DC Accuracy

    Better than ±1% of full-scale

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.

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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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