The Sorensen QRC20 is a DC power supply engineered for electronic testing and development applications requiring precise voltage and current control. This unit combines analog metering with digital readout to monitor output conditions in real time, supporting both constant voltage and constant current operating modes with automatic crossover. Ten-turn potentiometer voltage adjustment and adjustable current limiting from zero to rated output enable fine-resolution parameter setting across diverse laboratory and industrial test environments.
Technical Specifications
Regulation and Stability
Line regulation holds voltage to 0.1% of maximum rated output and current to 0.5% under constant nominal line voltage. Load regulation maintains the same accuracy across 0-100% load variation. Temperature coefficient is 0.02%/°C of rated output voltage and 0.03%/°C of rated output current, measured with constant line and load conditions.
Control and Display
A ten-turn potentiometer provides high-resolution voltage setting with simultaneous digital display of voltage and current. Analog bar graphs track transient changes under varying loads. Impedance-switched remote sensing delivers accurate voltage measurement at the load terminals, eliminating lead-drop errors.
– Key Features
• Four-terminal barrier strip output connections on rear panel
• Automatic constant voltage/constant current mode crossover
• Adjustable current limiting potentiometer (zero to rated output)
• Remote voltage sensing with impedance switching
• Simultaneous digital voltage and current readout
• Analog bar graph metering for dynamic monitoring
– Typical Applications
The QRC20 suits component characterization, subsystem validation, power integrity testing, and circuit development where stable, controllable DC output is essential. Digital display and analog monitoring combine to support both transient observation and steady-state verification.
– Compatibility & Integration
Multiple units operate safely in parallel or series configuration without damage. Short-circuit protection preserves unit integrity during load faults. Remote programming options and IEEE 488 interface support are available, enabling 0-10V command input and 12-bit resolution output control from external systems.
