Keysight (Agilent) N7974A Advanced Power System – Dynamic DC Power Supply, 80 V, 25 A, 2000 W

The Keysight N7974A is an advanced dynamic DC power supply engineered for precision voltage and current sourcing in demanding test environments. Rated at 80 V, 25 A, and 2000 W, it delivers fast transient response and high-speed programmable slew rates essential for characterizing complex electronic components under dynamic load conditions. The unit combines high-precision voltage and current regulation with flexible output modes - constant voltage (CV), constant current (CC), and constant power (CP) - enabling automated testing of devices with varying power requirements.

Technical Specifications

• Voltage output: 0–80 V


• Current output: 0–25 A


• Power rating: 2000 W


• Programmable slew rate for high-speed transient sourcing and sinking


• Fast transient response to minimize voltage deviations during rapid load changes


• High-precision voltage regulation and current regulation


• Programming and readback accuracy for both voltage and current


• CV/CC/CP output modes with automatic crossover

Key Features

• Full digital control via front panel and remote interfaces


• List mode and sequencing for complex automated test sequences


• Internal resistance simulation to replicate source impedance characteristics


• Over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection (OTP)


• Arbitrary waveform generation capability


• LAN (Ethernet) remote control interface

Typical Applications

• Transient load simulation and device response analysis


• Power delivery validation for sensitive circuits


• Component and subsystem reliability characterization


• Current-driven application testing and circuit protection validation

Compatibility & Integration Remote operation and automation via standard LAN (Ethernet) connectivity enable seamless integration into automated test systems and complex measurement workflows.