The Sorensen QRD40-75 is a fast-programmable DC power supply engineered for laboratory, bench, test, and system integration environments requiring stable, low-noise power delivery. Built on Raytheon Company’s Sorensen Operation platform, this linear pass-design unit operates in both constant voltage and constant current modes, accommodating diverse load requirements with minimal regulation error. Convection cooling and accessible component layout support field maintenance and extended operational life.
Technical Specifications
• Output Voltage: 0–40 V
• Output Current: 0–0.75 A
• Output Power: 30 W
• Line and Load Regulation: 0.01%
• Ripple (Max RMS): 200 µVrms
• Temperature Coefficient: (0.013% + 200 µV)/°C
• Output Impedance: <0.2 Ω at 100 kHz; <1.0 Ω at 600 kHz
• Remote Error Sensing Compensation: 1 V per load lead (max)
• Transient Response: 50 µs (typical, 100% load change)
• Input Voltage: 115 VAC, single phase
• Operating Frequency: 50/440 Hz without derating
– Key Features
• Dual operating modes: constant voltage and constant current
• Standard and high-speed programming; remotely programmable
• High-speed programming via voltage or resistance
• No overshoot at turn-on
• Linear pass design minimizes output noise
• Convection-cooled construction
– Typical Applications
• Component and subsystem testing
• Laboratory power delivery
• Bench instrumentation
• System integration and validation
– Compatibility & Integration
Remote programming capability enables integration into automated test systems and distributed control architectures. Low output impedance across the audio and ultrasonic frequency bands supports sensitive analog circuits and precision instrumentation.
