The Sorensen DCR300 series delivers programmable DC power supplies engineered for industrial, laboratory, and burn-in testing applications requiring stable, precisely regulated outputs. These units combine adjustable voltage and current delivery with advanced control capabilities and comprehensive protection, ensuring reliable performance in demanding environments.
Technical Specifications
Output Ratings
• Voltage: 0–300 Vdc across the series
• Current: 1.5 A, 6 A, 9 A, 16 A, 33 A, and 35 A models
• Power: Up to 10 kW (DCR300-33T), 5 kW (DCR300-16T), and 2.7 kW variants
Input Options
Single-phase and three-phase configurations: 208 VAC, 480 VAC 3-phase, 187–229 V 60 Hz 30 A three-phase.
Regulation & Stability
Line and load regulation typically 0.1% (DCR-T series), with tighter specs available: 0.05% or <0.01% + 1 mV voltage; <0.01% + 10 mA current (DCR-B models). Voltage regulation in constant voltage mode: 0.05% or 75 mV (whichever greater); constant current regulation: 0.25% of maximum output current. Temperature coefficient: 0.015%/°C of maximum output voltage. Stability: 0.1% maximum output voltage over 8 hours after 30-minute warm-up.
Ripple & Noise
Ripple and noise specifications range from <3 mVrms to 100 mVrms, with peak-to-peak values to 700 mVrms under constant voltage operation.
Transient Response
40 ms typical (DCR-T series) for 50% load change; 50 ms typical to return within ±1% for 50–100% load transitions.
– Key Features
• Programmable voltage and current with digital display
• Automatic V/I crossover with mode indicators
• Adjustable overvoltage protection (OVP) with shutdown capability
• Remote voltage and current sensing and programming
• Adjustable current limiting with automatic recovery
• Overtemperature and phase-loss protection (DCR-T series)
• Remote control: V/I programming, OVP shutdown, external meter drive, rear panel connectors for AC control and readback
• IEEE-488 interface with talk/listen and V/I readback (select models)
– Typical Applications
Burn-in testing, industrial power distribution, laboratory bench testing, and equipment qualification requiring precise DC regulation and remote programmability.
– Compatibility & Integration
IEEE-488 interface available on specified models. Remote sensing supported. Rear panel connectors enable integration with external control systems, shutdown circuits, and measurement instrumentation.
