Ametek / Xantrex / Sorensen XFR 100-28 DC Power Supply

The Ametek Xantrex Sorensen XFR 100-28 is a 2800 W programmable DC power supply engineered for research, development, production testing, and demanding industrial applications. It delivers 0–100 Vdc output at 0–28 A with zero voltage soft switching technology that minimizes switching transients, reduces noise to 175 mVp-p (0–20 MHz), and improves efficiency and thermal performance. The unit supports automatic constant voltage/constant current crossover with mode indication and remote sense capability featuring 5 V line loss compensation.

Technical Specifications

• Voltage: 0–100 Vdc


• Current: 0–28 A


• Power: 2800 W


• Voltage ripple (rms): 25 mV


• Current ripple (rms): 80 mA


• Output noise: 175 mVp-p (0–20 MHz)


• Switching frequency: 31 kHz nominal (62 kHz output ripple)


• Voltage load regulation: 0.02% of Vmax + 5 mV (27 mV)


• Current load regulation: 0.02% of Imax + 5 mA (10.6 mA)


• Voltage line regulation: Typically 12 mV


• Current line regulation: Typically 4.8 mA Protection & Control


• Over voltage protection (OVP): Standard, adjustable


• Over temperature protection: Standard shutdown


• Thermal shutdown: Standard


• Remote sensing: Supported with 5 V line loss compensation


• Ten-turn voltage and current controls for high-resolution front panel adjustment


• LED indicators for voltage/current mode, OVP, remote programming, and shutdown


• Preview function for setpoint verification

Key Features

• Zero voltage soft switching reduces noise performance approaching linear supply levels


• Compact 2U (3.5 inch) profile in standard 19-inch rack mounts


• Stackable design without requiring ventilation space between units


• Automatic CV/CC crossover with mode indication


• Remote monitoring of output voltage and current


• Standby/remote/local mode support


• Remote on/off control

Typical Applications Magnet control, ATE systems, process control, electroplating, component burn-in.

Compatibility & Integration Analog programming standard. Optional interfaces include GPIB/IEEE 488.1 (Option MGA), isolated analog programming/readback, RS-232, and Ethernet connectivity.