The Xantrex XFR35-35 is a 1225 W programmable DC power supply engineered for research, product development, production test, and OEM applications. Delivering 0–35 Vdc and 0–35 A, it combines zero-voltage soft switching technology with high power density in a compact 1U, 19-inch rack-mount form factor. The soft switching architecture minimizes switching transients, enabling 84% typical efficiency, reduced thermal output, and stackable operation without inter-unit ventilation spacing.
Technical Specifications
• Output: 1225 W nominal; 0–35 Vdc, 0–35 A
• AC Input: 85–130 Vac or 190–264 Vac, 47–63 Hz; 22.6 A at 208 VAC, 20.5 A at 230 VAC typical
• Switching Frequency: 78 kHz nominal (156 kHz output ripple)
• Efficiency: 84% typical at 100 VAC input, rated output
• Load Regulation: Voltage 0.02% Vmax + 5 mV; Current 0.02% Imax + 5 mA
• Line Regulation: Voltage 0.02% Vmax + 5 mV; Current 0.02% Imax + 5 mA
• Output Noise: 50 mVp-p (0–20 MHz)
• Output Ripple: 8 mV rms (voltage); 60 mA rms (current)
• Maximum Drift (8 hours): 0.5% Vmax; 0.05% Imax
• Temperature Coefficient: 0.02% Vmax/°C (voltage); 0.03% Vmax/°C (current)
• Transient Response: <3 ms recovery to ±0.5% rated voltage
• Warm-up Time: 30 minutes stabilization; 7 s maximum to stable output
– Key Features
• Constant Voltage (CV) and Constant Current (CC) operation modes
• Zero-voltage soft switching technology reduces switching transients and heat generation
• Adjustable Over Voltage Protection (OVP); standard Over Temperature Protection (OTP)
• Remote sense with 5 V line loss compensation
• Remote analog programming: 0–5 kΩ or 0–10 kΩ resistance inputs; 0–5 V or 0–10 V voltage sources
• Remote analog monitoring outputs: 0–5 V or 0–10 V (default) for 0–100% output
• 10-turn voltage and current control knobs; LED voltmeter and ammeter display
• Remote On/Off and interlock: 2.5–15 V signal or TTL-compatible, selectable logic
• Optional isolated analog control (ISOL)
• Standby switch on front panel
– Typical Applications
Research and development, prototype validation, production burn-in and functional test, OEM integration, and lab-bench evaluation of 0–35 V systems.
– Compatibility & Integration
Rack-mount configuration (1U, 19-inch) permits space-efficient multi-unit installations. Analog programming and monitoring interfaces support both voltage and resistance-based control schemes. TTL-compatible signaling enables logic-level integration into automated test systems.
