The Keysight RP7941A is a single-output, bi-directional regenerative DC power supply engineered for advanced automated test equipment (ATE) and high-voltage, high-power applications. Operating in two-quadrant mode, it functions simultaneously as a precision power source and regenerative electronic load, returning up to 90% of energy to the grid. The compact 3U-high package integrates source and load capabilities, reducing footprint and integration complexity while delivering sub-millisecond command processing and autoranging output characteristics.
Technical Specifications
• Maximum Voltage Per Output: 20 V
• Maximum Current Per Output: ±400 A
• Maximum Power: 5 kW
• AC Input Voltage: 400/480 VAC, 3-phase
• Number of Outputs: Single output
• Operation Mode: Two-quadrant (source and regenerative load)
• Command Processing Time: ≤1 ms
• Regeneration Efficiency: Up to 90% power recovery to grid
• Output Ripple & Noise: 30–200 mV peak-to-peak (CV); 3–20 mV rms (CV)
• Load Regulation: 1–6 mV (voltage); 13–50 mA (current)
• Resistance Programming: 0 to 0.98 Ω
• Transient Simulation: Step events, arbitrary waveforms (up to 65,535 data points), and lists (up to 512 steps)
– Key Features
• Autoranging output expands the power curve across voltage and current combinations
• Battery emulation with programmable internal resistance and charge-state simulation
• Simultaneous voltage and current measurement with averaged or digitized capture modes
• Digitized measurement capability for dynamic current and voltage profile analysis
– Typical Applications
• HEV/EV power converter testing
• Energy storage system validation
• DC-DC and DC-AC converter characterization
• High-current battery simulation and testing
– Compatibility & Integration
• Connectivity: LAN (LXI Core), USB, and GPIB
• Digital Control Port: Seven user-configurable I/O pins
• Series: RP7900 Series with 400/480 VAC input (200/208 VAC models available for global deployment)
• Weight: 60 lbs (27.3 kg)
