Modular DC Supplies

Modular DC power supplies are configurable, rack-mountable systems built around interchangeable power modules that install into a shared mainframe chassis. Each module delivers an independently regulated output at a defined voltage and current rating, and multiple modules can populate a single chassis to create a customized multi-channel supply precisely matched to test requirements. This architecture maximizes rack density, simplifies cabling in large ATE installations, and allows test capacity to be scaled incrementally by adding modules as program requirements grow.

Chroma's 62000 series is a prominent example, offering modules ranging from 15 V/90 A to 600 V/2.5 A within a common chassis platform. Output parameters are fully software-controlled via GPIB, USB, and LAN, enabling rapid reconfiguration between test programs. Modular supplies are particularly prevalent in high-throughput production test environments where rack density and measurement repeatability are critical, as well as in automotive hardware-in-the-loop (HIL) simulation rigs and power electronics R&D benches.

Typical Applications

High-density ATE rack systems for production-line power electronics and converter testing
Automotive HIL simulation requiring multiple independent, high-current DC rails
Solar inverter and DC-DC converter characterization across wide voltage and current ranges
Aerospace and defense subsystem power validation in multi-channel rack configurations
R&D test benches requiring rapid output reconfiguration between different device types

Popular Brands

Chroma ATE is highly regarded for its 62000 series programmable modular supplies with broad output range coverage and robust ATE integration. Keysight Technologies offers rack-optimized modular solutions for precision test environments. NH Research and Ametek Programmable Power provide modular platforms used in demanding industrial and defense test applications requiring high channel counts.