Series MCP from 125V to 2kV / 35W to 15kW


  • compact size and light weight
  • efficiency approx. 90%
  • short-circuit & flashover proof
  • unlimited operation with rated current in a short-circuit condition
  • unlimited operation with rated power
  • voltage and current regulation with automatic sharp transition, control modes indicated by LEDs
  • adjustable overvoltage protection (limitation of set value)
  • 4½ digit DVM''s for voltage and current for all models
  • voltage and current setting by means of 10-turn potentiometers with precision scale; the adjusting knob can be locked
  • indication of set point values by means of button for switchover of the displays
  • set point adjustment possible with locked output, release of output voltage by means of an "ON" / "OFF" switch
  • suitable for inductive and capacitive loads
  • suitable for photomultipliers


In principle, the rectified line voltage drives a square wave generator of fixed frequency, whose AC voltage is transformed, rectified and filtered, producing the output voltage. For regulation, the square wave voltage is pulse width modulated. A low residual ripple of the output voltage, together with a high stability, high regulation speed and a low stored energy are all achieved by virtue of the high switching frequency.


  • ½19" or 19" table-top case (depending on output voltage and power)
  • 19" Rack-adapters for mounting into a 19" rack are available as accessory


Output isolation The output is floating. Either the positive or the negative terminal may be connected to earth. Units with nominal voltage up to 350V are isolated for ±500V. Units with nominal voltage from 650V up to 2000V are isolated for ±2000V. (Not valid with the option analog programming. If the floating function should remain, the floating analog programming must be chosen).
Output terminals All output terminals are located at the rear side of the unit. Units up to 350V nominal voltage are equipped with 4mm safety connectors. For nominal voltage of 650V and higher, high voltage connectors with the appropriate dielectric strength are delivered with the power supply.

Technical Data:

Mains connection ≤ 1400W: 230V ±10% 47Hz to 63Hz
≥ 2800W: 400V ±10% 47Hz to 63Hz, three-phase
Ambient temperature 0°C to +40°C

The following data applies for voltage and current regulation, and refers to the rated value, unless otherwise stated. (For explanations please refer to Terms and Definitions)

Setting range from approx. 0.1% to 100%
Setting resolution ±1 x 10-4
Residual ripple (0-10MHz)

up to 350W nominal power:
< 5 x 10-5pp + 50mVpp

for 700W and higher:
< 2 x 10-4pp + 200mVpp

Recovery time

Voltage control:
< 1ms for load changes from 10% to 100% or from 100% to 10%

Current control:
< 10ms for load changes causing an output change of less than 10% of the rated voltage

Setting time at nominal load < 300ms for changes of the output voltage from 10% to 90% or 90% to 10%
Discharge time constant
for output without load
approx. 2sec. to 10sec., depending on type

for ±10% mains voltage variation:
< ±1 x 10-5

for no load / full load:
< 1 x 10-4

over 8 hours under constant conditions:
< ±1 x 10-4

within the temperature range:
< ±1 x 10-4 / K


Analogue programming All FuG power supplies are optionally available with an analog programming 0-10V (Standard with the series HCE and HCN 7E). This option is also available as retrofit set.
Coarse/fine-potentiometers Coarse/fine-potentiometers (99% / 1%) for more accurate adjustment of voltage and / or current.
Computer interface IEEE 488, RS 232, RS 422, Profibus DP, USB, LAN (more on request)
Higher stability Voltage and/or current regulation with better long-term stability and lower temperature coefficient.
Power limitation Besides the standard voltage regulation and current regulation, the units may be equipped with an additional regulation loop for constant power.
DVM with higher resolution "Instead of the standard DVM with a display of max.""1999"", DVM with higher resolution can be offered."
Lower ripple On several series a lower ripple can be achieved by better smoothing. This option can be supplied only with new units. A later modification is not possible. For an order with this option applies.
Lower stored energy Especially for the operation of gas discharge processes, arcs or similar loads with a negative dynamic resistance characteristic, the quantity of stored energy can be decreased by smaller output capacitors. Those units will have than a higher ripple up to 1%.