Keysight (Agilent) N7950A Advanced Power System – Dynamic DC Power Supply, 9V, 100A, 1000W

The Keysight N7950A is a 1000W advanced dynamic DC power supply engineered for automated test equipment (ATE) applications. Built on Keysight's VersaPower architecture, it delivers 9V output at up to 100A with exceptional speed and measurement precision. Command processing executes in less than 2 ms, with programming speeds reaching 500 µs, enabling test throughput up to 100 times faster than standard system supplies.

The unit simultaneously measures voltage and current with dual-mode capability - averaged mode for DMM-quality precision or digitized mode for dynamic profile capture exceeding typical oscilloscope resolution. Two-quadrant operation supports power storage testing with smooth positive/negative current transitions. Paralleling expands capacity to 10 kW while maintaining equal current sharing across supplies.

The 1U rackmount design integrates via GPIB, USB, and LAN interfaces, with optional Black Box Recorder for comprehensive power event and measurement data logging.

Technical Specifications

• Output Power: 1000W (1 kW)


• Output Voltage: 9V


• Output Current: 100A


• Command Processing Speed: Less than 2 ms


• Programming Speed: Up to 500 µs (fast up/down)


• Test Speed Improvement: Up to 100x faster than standard supplies


• Measurement Modes: Averaged (DMM-quality) and digitized (dynamic profile capture)


• Form Factor: 1U rack mount


• Display: LCD


• Digital Interfaces: GPIB, USB, LAN

Key Features

• Dual voltage and current measurement with simultaneous high-accuracy, high-resolution capability


• Programmable positive and negative current limits and waveforms


• Two-quadrant operation for power storage applications (full operation requires N7909A dissipater unit)


• Built-in APS paralleling for expansion to 10 kW with equal current sharing


• Automatic downprogramming


• Optional N7908A Black Box Recorder for power events, trigger events, and status tracking


• Power, peak power, watt-hour, and amp-hour measurement capability


• Adjustable measurement rate balancing speed and accuracy

Typical Applications

• Battery and power storage device characterization


• Transient load testing and dynamic power profile analysis


• Automated test equipment (ATE) power sourcing


• Device power consumption validation

Compatibility & Integration

• APS Power Assistant Software (free) for setup and advanced measurement display


• 14585A Power Supply Control and Analysis Software for sourcing and measurement features


• Multi-unit expansion via built-in APS paralleling architecture