FS series

Output up to 6kV 10W

Hochspannungsmodul FS
  • Output Linearly Proportional to Input, <0.7V Turn-On Voltage
  • High Input to Output Galvanic Isolation
  • Floating Output (0.2kV-4kV Models) with Optional Center Tap
  • No Minimum Load Current Required
  • Low Noise, Low Conducted Emissions and Low Input Ripple Current
  • High Efficiency, No Derating Required
  • Protected Against Arc and Short Circuit
  • SMART FEATURES: Over-Temperature and Over-Voltage Protection with Automatic Shutdown and Error Code Output
  • Designed to meet RoHS Directive
  • Miniature Lightweight Package

The FS Series of isolated, proportional DC to High Voltage DC Converters offers stout design and enhanced features for excellent long term reliability. Outputs ranging from 200VDC through 6000VDC are offered in miniature, cost effective, PCB mount packages.

The FS Series boasts a full ten watts of output power for each model and features a low 0.7V turn‑on voltage. The output voltage is proportional to the input voltage, from turn on to maximum output voltage, enabling easy control of the high voltage. A quasi-sinewave, resonant oscillator produces clean, reliable high voltage with inherently low ripple, low EMI/RFI, low input ripple current and low conducted emissions. The frequency of the oscillator is stable throughout the operating range, allowing for easy additional filtering and always operates well above the audio frequency range.

This series features sturdy, galvanic input to output high voltage isolation, conservatively rated at ±2500V + VOUT with less than 100pF of coupling capacitance and less than 100nA of leakage current. Robustness and high reliability have been designed in to each model by incorporating output arc surge current limiting and indefinite short circuit protection. Careful control over internal voltage gradients extends the useful life calculated. Mean Time Between Failure (per Bellcore TR-332) exceeds 840,000 hours.

In addition, the internal transformer temperature and input voltage are actively monitored with supervisory circuits and fed into a shut down circuit, preventing excessive input voltage or over temperature failures. Should preset limits be exceeded, the module will automatically shut down and issue an error signal on pin 6 (TTL high).
When the fault condition is removed, the unit restores itself to normal operation, ensuring maximum reliability in the field. However, the pin 6 error signal will remain high until reset by power cycling the +5V logic.

The FS Series also features an Enable/Disable function. A TTL high signal on pin 8 disables the high voltage output.

High power conversion efficiency, coupled with low internal thermal resistance creates a vigorous package able to withstand wide operating temperatures. A unique integrated anodized aluminum heatsink surface features two threaded blind inserts which allow for optimal thermal management via external heatsink for high temperature operation and/or convenient chassis mounting configurations.


  • Input Voltage:  12VDC, 15VDC, 24VDC, 28VDC
  • Turn-On Voltage:  0.7V typ.
  • Isolation:  ±2500V bias on pin 4
  • Output Voltage Tolerance:  ±5% full load
  • Operating Temperature (Standard):
       -25°C to +75°C
  • Operating Temperature (Extended):
       -55°C to +85°C
  • Dimensions (LxWxH):
        57.2 x 28.5 x 12.7 mm3
  • Weight:  45g


  • Electrophoresis
  • Piezo Devices
  • Capacitor Charging
  • Mass Spectrometry
  • Electrostatic Chucks


  • B  - Smart Features
           NOT included
          (this option is
           not offered on
           CT models)
  • CT  - Output Center Tap
            (0.2kV-4kV Models)
  • T  - Extended Operating

Model Overview Floating Output

The CT units supply both polarities with respect to a center-tap return.

Model Output Voltage
Max. Output Current  *1
0 - 200
0 - ±100
50 < 6%
0 - 300
0 - ±150
33.3 < 2%
0 - 500
0 - ±250
20 < 2%
0 - 1000
0 - ±500
10 < 1%
0 - 2000
0 - ±1000
5 < 2.5%
0 - 3000
0 - ±1500
3.33 < 2%
0 - 4000
0 - ±2000
2.5 < 1.5%

Model Overview Fixed Polarity

Model Output Voltage
Max. Output Current  *1
0 - +5000
0 - -5000
2 < 2.5%
0 - +6000
0 - -6000
1.67 < 2.5%

*1 - At maximum rated output voltage
*2 - Input voltage range designator: "12", "15", "24" or "28" for 0‑12VDC, 0‑15VDC, 0‑24VDC or 0‑28VDC respectively;  eg. FS40‑12
Note: Some combinations of input / output voltage and options are not feasible.
Please refer to the datasheet for available models.


FS-VM Vertical Mount Adapter Boad

The FS-VM adapter board provides a convenient way to mount any FS Series module on its side, minimizing the footprint on the printed circuit board.

Note: The FS module must be ordered separately.

FS-EB Evaluation Boad

The FS-EB evaluation board provides a convenient package to use any FS Series module without having to fit it onto a PC board. The board provides for easy prototyping and evaluation.

Note: The FS module must be ordered separately.


The information given here is technical data, not assured product characteristics. It has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. The user has to ensure by adequate tests that the product is suitable for his application regarding safety and technical aspects.
hivolt.de GmbH & Co. KG does not assume any liability arising out of the application or use of any product described.

Safety Advice

Design, installation and inspection of machinery and devices carrying high voltage require accordingly trained and qualified personnel. Appropriate safety rules and directives must be complied with.
Improper handling of high voltage can mean severe injuries or death and may cause serious collateral damage!