Safe operating area

The PS48402 is a dual-channel Programmable DC Power supply in a single-slot 3u PXI / cPCI form factor. Each output is fully isolated and capable of providing 0 - 48V DC / 2 A / 80 W per channel. Both current and voltage are programmable and readable with 16-bit resolution. This makes the PS48402 a very cost- and rackspace-effective solution to power your dual-rail unit under test.

Integrated transient recorder

The PS48402 has a programmable current limit and the ability to measure the output voltage and current under software or trigger control. An integrated transient recorder allows capturing up to 16384 samples of output current or voltage with a maximum sample rate of 10 kSps.

Triggered actions

Both the output voltage and current can be updated under trigger control and the transient recorder can be started on the same trigger. This allows for recording step responses without additional instruments.

Input power

Each unit comes with an external AC/DC power box that provides power for the outputs from the mains voltage. This minimizes loading of the backplane/chassis power source, improving overall system stability.

Application areas

  • Automotive
  • Telecom
  • Board level testing
  • Component level testing
  • DUT power supply

Block Diagram

Key Features

  • 2 channels of 80 W max. each
  • 0-48 VDC / 2 A per channel
  • Isolated outputs
  • High accuracy, low noise output voltage
  • 4-Wire/Remote Sensing connection
  • Programmable Current Limit
  • 16 Bit Read Back of Output Voltage / Current
  • Integrated transient recorder
  • flexible trigger options
  • .NET, LabVIEW and LabWindows/CVI (VXIplug&play compatible) drivers included
  • Soft Front Panel included

Technical Specifications

Electrical characteristics

Output Voltage 0 to 48 V
Voltage setting resolution 0.74 mV
Voltage setting accuracy ±0.2 % of programmed value ±25 mV
Load regulation 0.1 % of programmed value + 5 mV (10 to 90 % load change)
Output current 2 A max. above 40 V lineary de-rating to 1.67 A (80 W max.)
Current limit resolution 35 µA
Current limit accuracy 0.5 % of programmed value ±10 mA
Sense line regulation area 0.5 V (sum of both sense lines)
Output ripple (typical) <3 mV RMS under full load (Bandwidth 20 Hz - 1 MHz)
Voltage Read back resolution 0.74 mV
Voltage Read back accuracy ±0.1 % of reading ±10 mV
Current read back resolution 35 µA
Current read back accuracy ±0.2 % of reading ±5 mA
Rise time 1 Volt/ms (typical at full load)
Trigger sources Software, Front, PXI0..7, PXI Star
Front trigger input Floating opto-coupler input (220 Ohm in series with a diode)
Front trigger level 4.0 V - 12 V (approx. 10 mA - 50 mA)
Trigger pulse low / high time min. 20 µs
Trigger actions Update Vout and Iout,
Capture Vout or Iout,
Update Vout and Iout & capture Vout or Iout
Capture memory depth 8k per channel
Maximum capture frequency 10 kHz
Capture clock sources Internal sample clock,
Trigger source
Voltage to chassis (any pin) 60 V DC (Safety limit. Design breakdown voltage >250 V DC)
Insulation resistance > 100 MOhm
Operating temperature 0 °C to 50 °C
Exnernal AC/DC box input range 10 - 240 V AC, 50/60Hz

Physical characteristics

PS48402 module

Dimensions 3 U, 1-slot, PXI/CompactPCI module (hybrid slot compatible)
Weight 185 g

External AC/DC converter

Dimensions 20.5 cm x 17.5 cm x 5.5 cm
Weight 1750 g
Cable length 1 m (other lengths on request)