The Ametek Xantrex Sorensen XFR 7.5-140 is a 1050 W rated programmable DC power supply engineered for demanding test, research, and production applications requiring precise voltage and current control. This compact 1U rack-mount unit delivers 0–7.5 V and 0–140 A with exceptional output stability, employing zero voltage soft-switching technology to achieve high efficiency and minimal noise. Automatic CV/CC crossover, adjustable overvoltage protection, and remote sensing with up to 5 V line drop compensation ensure reliable operation across diverse load conditions. The supply stacks without inter-unit ventilation requirements, maximizing space efficiency in multi-channel test benches.
Technical Specifications
• Output power: 1050 W rated; 1200 W total
• Output voltage range: 0–7.5 V
• Output current range: 0–140 A
• Output noise (0–20 MHz): 75 mV
• Output ripple (rms): 9 mV
• Voltage ripple (peak-to-peak): 500 mA
• Eight-hour drift: 3.75 mV (voltage), 70 mA (current)
• Temperature coefficient: 1.5 mV/°C (voltage), 42 mA/°C (current)
• Program resolution (RS-232): 1.2 mV (voltage), 18.3 mA (current)
• Operating temperature: 0–50°C without derating
• Form factor: 19-inch rack mount, 1U height (1.75 inches)
– Key Features
• Constant voltage/constant current operation with automatic crossover
• Adjustable overvoltage protection (5–110% of Vmax range)
• Ten-turn potentiometers with simultaneous dual-parameter digital display
• Push-button output standby control and setpoint preview
• Remote sensing standard; maximum 5 V/line drop compensation
• Thermal shutdown with latching or auto-reset options
• Stackable design requires no ventilation spacing between units
– Typical Applications
Battery charging and testing, electroplating, component aging, accelerated life testing, power distribution system validation, and laboratory characterization of low-voltage, high-current devices.
– Compatibility & Integration
Front-panel analog programming with optional isolated programming, GPIB, and RS-232 interfaces. RS-232 control provides 16-bit resolution digital programming and readback of actual voltage, current, soft limits, OVP setting, and supply status.
