HV Power Supplies

Capacitor charging high voltage power supplies and customer-specific HVPS


High voltage power supplies (HVPS) of different power categories  

Each high voltage and each high current application has its own requirements with respect to the power supply. Whatever your requirements are, we are able to realise compact DC power supplies up to several hundred kW on the basis of a modular power class system from 16 kW up to 75 kW.

With our switch-mode power supplies (SMPS) in standard version and with customer specific modifications we offer characteristics like:

  • output voltage up to 200 kV
  • controlled output power

  • controlled output current

  • controlled output voltage

  • optimized design, also concerning weight and size

  • integration into equipment cabinets, including protective devices and safety systems or a full pulse generator

  • increased controlling accuracy (depending on the time behavior up to 10-5)

  • potential free output (simple change of polarity, series connection)
  • high efficiency


Our high performance power supplies of SV series and KL series are available in industrial or in laboratory version as well as being an OEM component. Each optimised regarding it's use as HV current source or as HV voltage source.

A capacitor charging power supply, for example, is typically designed as a robust current source, whereas the current is immediately switched off exceeding the set value of the charging voltage. Precision mainly depends on the slew rate of the actual charging voltage and the response time.of the control system.

Capacitor chargers of Poynting GmbH provide repetition rates up to 100 Hz in standard design at reproducing accuracy of less than 0.1%. Higher repetition rates up to several kHz are available on request.
At lower slew rates of the charging voltage an accuracy level better than 0.01% is possible.


Typical fields of application of our high voltage power supplies (HVPS) in pulsed or continuous-wave (CW) operation:

  • supply of electron tubes as klystrons, magnetrons etc.

  • particle acceleration (modulators, magnets, …)

  • particle sources as ion, electron and neutron sources

  • electrostatic precipitator (ESP)

  • high performance laser

  • gas discharges

  • elektromagnetic forming and underwater shockwave generation

  • component testing

  • etc.