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
Output
• 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.















