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.
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