Agilent/Keysight RP7953A

The Keysight RP7953A is a single-output, bidirectional regenerative DC power supply engineered for demanding electronic test applications. Operating as both a precision source and electronic load, this two-quadrant instrument sources and sinks current up to ±20 A at voltages reaching 950 V within a 10 kW power envelope. Autoranging output characteristics expand the voltage-current curve, delivering flexible power combinations from a compact 3U form factor.

The RP7953A recovers approximately 90% of energy back to the 3-phase 200/208 VAC grid, reducing operational and cooling costs. Solid-state output disconnect switching enables fast protection and smooth transients. Integrated safety features protect both operator and device under test.

Technical Specifications

• Output: 950 V maximum, ±20 A maximum, 10 kW maximum power, single output, programmable


• Input: 200/208 VAC ±10%, 3-phase


• Operation: Two-quadrant, bidirectional source and load with regenerative capability


• Output Modes: Voltage priority, current priority, power priority, photovoltaic (SAS)


• Battery Emulation: High-voltage, high-power batteries with programmable internal resistance to 50 Ω


• Transient Generation: Integrated arbitrary function generator for transient simulation


• Command Processing: Sub-millisecond response time


• Parallel Configuration: Scalable to 200 kW power or loading through direct parallel connection


• Interfaces: LAN (LXI Core), USB, GPIB, Web Interface, Telnet

Key Features

• Fast output speed with sub-millisecond command execution


• Regenerative design returns up to 90% of energy to grid


• Solid-state output disconnect for rapid protection


• Autoranging capability expands power delivery curve


• Battery characterization across multiple charge states

Typical Applications

• Battery emulation and life characterization


• Power converter testing for hybrid and electric vehicle development


• Transient response simulation and validation


• High-power DC source and load applications

Compatibility & Integration The RP7953A is part of the Keysight RP7900 Series and integrates into the EV1003A HEV/EV Power Converter Test Solution.