AC-DC Electronic Loads

AC-DC electronic loads are test instruments capable of simulating loads on both alternating current (AC) and direct current (DC) power sources within a single platform. Unlike dedicated DC loads, AC-DC electronic loads can draw programmable AC current waveforms, enabling realistic testing of AC power sources such as UPS systems, inverters, AC-DC power supplies, and grid-tied converters. They allow engineers to evaluate power factor, harmonic distortion, inrush current behavior, and dynamic load response under controlled conditions.

These instruments are particularly valuable in compliance and certification testing where equipment must be validated against real-world AC load conditions, including non-linear and distorted current waveforms. AC-DC electronic loads serve both automated test systems and manual bench testing across power electronics, energy storage, and industrial equipment sectors.

Typical Applications

UPS system testing under AC and DC load conditions
Inverter and AC-DC power supply compliance validation
Power factor and harmonic distortion characterization
Grid-tied inverter and energy storage system testing
Industrial power equipment qualification and certification testing

Popular Brands

Chroma, Keysight, and EA Elektro-Automatik manufacture AC-DC electronic loads for demanding test applications in power electronics R&D, energy storage testing, and compliance certification laboratories.