Sorensen DCR150-3B

The Sorensen DCR150-3B is a 500 W DC power supply delivering 0–150 V and 0–3 A output with continuously adjustable voltage and current control. Designed for laboratory, industrial, and research applications, it features automatic crossover between constant voltage and constant current modes with electronic overvoltage protection. The unit operates from single-phase 115 VAC input (50/60 Hz) with optional 208, 220, or 230 VAC configurations, maintaining 0.05% line and load regulation and 300 mV RMS ripple and noise typical performance.

– Technical Specifications

• Output: 0–150 V DC, 0–3 A DC; 500 W maximum
• Input: 115 VAC single phase, 50/60 Hz (standard); 208, 220, or 230 VAC optional
• Line and Load Regulation: 0.05% typical; 0.05% or 75 mV whichever is greater for 0–150 to 0–600 V models
• Ripple and Noise: 300 mV RMS typical
• Voltage Mode Stability: 0.1% of E_max over 8 hours (30-minute warm-up, constant line/load/ambient)
• Current Mode Stability: 0.15% of I_max over 8 hours (30-minute warm-up)
• Temperature Coefficient (Voltage): 0.015%/°C of E_max
• Temperature Coefficient (Current): 0.03%/°C of I_max
• Transient Response: 50 ms typical for 50% load change
• Overvoltage Protection: Electronic crowbar reduces output to zero on overvoltage condition

– Key Features

• Automatic CV/CC mode crossover with front-panel mode indicators
• Fine and coarse potentiometers for independent voltage and current adjustment
• Adjustable current limiting with automatic recovery on short circuit
• Low-level remote sensing (maximum 8 V drop per lead or 10% of E_max)
• Remote programming via resistance or voltage signal
• Front-panel power circuit breaker and separate OVP control
• Series operation up to 200 V DC maximum (two or more units)
• Parallel operation (Master-Slave): up to four units

– Typical Applications

• Precision laboratory power distribution
• Industrial test and burn-in environments
• Research and development workstations
• Equipment requiring stable, low-noise DC sourcing with overload protection

– Compatibility & Integration

Supports series and parallel configurations for extended voltage and current requirements. Remote sensing and programming capabilities enable system integration with external controllers and automated test equipment.