PS48401 - PXI power supply

Single channel 0-48VDC / 2A / 40W

PS48401 - Single channel Programmable Power Supply, 0-48Vdc
  • 0-48VDC / 2A / 40W max.
  • Isolated output
  • No external power source required
  • High accuracy / low noise output voltage
  • Programmable Current Limit
  • 16 Bit Read Back of Output Voltage / Current
  • 2-slot width, PXI / cPCI Instrument
  • Programmable sequencer
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The PS48401 is a Programmable DC Power supply in a 2-slot PXI / cPCI form factor. Featuring a fully isolated output capable of providing 0-48VDC / 2A / 40W. It offers a programmable current limit and the ability to measure the output voltage and current under software or trigger control.

Both the output voltage and current can be updated under trigger control and an on-board memory allows for storage of voltage and current limit sequencing and measured results.



Special functions:

  • Measure output voltage or current, software controlled.
  • Measure output voltage or current, external trigger controlled.
  • Update output voltage and current limit, external trigger controlled.
  • Sequence above functions and store measured values into on-board memory


  • Output Voltage 0 to 48V
  • Voltage setting resolution 0.74mV
  • Voltage setting accuracy ±0.2% of programmed value ±25mV
  • Load regulation 0.1% of programmed value + 5mV (10 to 90% load change)
  • Output current 2A max. above 20V lineary de-rating to 0.8A (40W max.)
  • Current limit resolution 35μA
  • Current limit accuracy 0.5% of programmed value ±10mA
  • Sense line regulation area 0.5V (sum of both sense lines)
  • Output ripple (typical) 1.5mVrms, 6mVpp (Full load, BW = DC – 1MHz)
  • Voltage Read back resolution 0.74mV
  • Voltage Read back accuracy ±0.1%reading ±10mV
  • Current read back resolution 35μA
  • Current read back accuracy ±0.2%reading ±5mA
  • Memory Depth 16k
  • Rise time: 1Volt/ms (typical at full load)
  • Trigger input Floating opto-coupler input (220 Ohm in series with a diode)
  • Trigger level 4.0V – 12V (approx. 10mA – 50mA)
  • Minimum trigger pulse low / high time 20μs
  • Maximum sequencing frequency 10kHz
  • Sequence memory depth 16384 readings
  • Voltage to chassis (any pin) 60VDC (safety limit, design breakdown voltage > 250VDC)
  • Insulation resistance > 100MOhm
  • Backplane 5V under voltage lockout 4.65V
  • Backplane 12V under volt. lockout 11.3V
  • Operating temperature 0°C to 50°C


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