The Xantrex XFR35-35 is a 1200 W programmable DC power supply engineered for research, product development, production test, and OEM applications demanding clean, precisely regulated power. Operating from 0–35 Vdc at 0–35 A, the unit employs zero voltage soft switching technology to virtually eliminate switching transients, reducing noise and thermal output while extending component life. Full rated power is delivered across the entire 0–50 °C operating range without derating. The supply accepts dual AC input ranges (85–130 Vac and 190–264 Vac, 47–63 Hz) and operates in both constant voltage and constant current modes.
Output quality is exceptional: 50 mVp-p noise (0–20 MHz), 8 mV voltage ripple (rms), and 60 mA current ripple (rms). Load regulation holds to 3 mV on voltage and 5 mA on current; line regulation to 5.5 mV and 5.5 mA respectively. Voltage drift over 8 hours is 17.5 mV with temperature coefficient of 7 mV/°C. Built-in LED voltmeter (0.3 mV / 0.5% accuracy) and ammeter (0.3 mA / 0.5% accuracy) provide real-time output monitoring.
Technical Specifications
• Output Power: 1200 W
• Output Voltage: 0–35 Vdc
• Output Current: 0–35 A
• Input AC: 85–130 Vac or 190–264 Vac, 47–63 Hz
• Output Noise: 50 mVp-p (0–20 MHz)
• Voltage Ripple: 8 mV rms
• Current Ripple: 60 mA rms
• Load Regulation: 3 mV voltage, 5 mA current
• Line Regulation: 5.5 mV voltage, 5.5 mA current
• Drift (8 hours): 17.5 mV voltage, 17.5 mA current
• Temperature Coefficient: 7 mV/°C voltage, 10.5 mA/°C current
• Efficiency: 84%
– Key Features
• Zero voltage soft switching minimizes transients and thermal stress
• Dual AC input ranges with automatic selection
• Constant voltage and constant current operating modes
• Remote sensing with 5 V line loss compensation
• Analog programming: 0–5 kΩ, 0–10 kΩ resistance inputs or 0–5 V, 0–10 V voltage sources
• 10-turn precision voltage and current potentiometers
• Analog monitoring outputs (0–5 V or 0–10 V ranges)
• Dense thermal design enables rack-mount stacking without forced ventilation
– Interfaces & Control
• Front panel: LED voltmeter, ammeter, standby switch
• Rear connectors: Programming and monitoring inputs/outputs
• Optional interfaces: GPIB (IEEE 488.1), RS-232, Ethernet, CANbus
– Typical Applications
Research and development, component burn-in and stress testing, production test environments, and OEM integration where stable, low-noise DC power is critical.
