Sorensen DCR300-1.5B

The Sorensen DCR300-1.5B is a programmable DC power supply delivering 0–300 Vdc at 1.5 A (500 W) for laboratory, industrial, and educational applications. It operates in constant voltage (CV) and constant current (CC) modes with automatic crossover, providing precision regulation and adjustable current limiting for overload and short-circuit protection. An SCR-controlled regulator ensures high efficiency, while overvoltage protection and remote sensing capability enable flexible deployment in test and measurement environments.

– Technical Specifications

Output:
• Voltage: 0–300 Vdc
• Current: 1.5 A at 40 °C
• Power: 500 W

Regulation & Stability:
• CV regulation (line & load combined): 0.05% of max output voltage or 75 mV, whichever is greater
• CC regulation (line & load combined): 0.25% of max output current
• CV ripple (PARD): 700 µVrms
• CC ripple (PARD): 4 mA
• Voltage temperature coefficient: 0.015%/°C of max output voltage
• Current temperature coefficient: 0.03%/°C of max output current
• Voltage stability: 0.1% of max output voltage over 8 hours (after 30 min warm-up)
• Current stability: 0.15% of max output current over 8 hours (after 30 min warm-up)
• Transient response: Typically 50 ms to ±1% band for 50%–100% step load change

Remote Sensing:
• Maximum load lead drop: 5% of max output voltage or 3 V, whichever is smaller

Input:
• Standard input: 103–127 Vac single phase
• Optional input: 190–230 Vac (M1), 200–240 Vac (M2), 210–250 Vac (M3)
• Frequency: 49–63 Hz single phase (ripple and transient response specs apply at 60 Hz only)

– Key Features

• Dual-mode operation with automatic CV/CC crossover
• Remote voltage and current programming via resistance or voltage signal
• Adjustable current limiting with automatic recovery
• Standard overvoltage protection (OVP)
• Panel-mounted mode indicators
• Convection cooling
• Optional rackmount slide rails available

– Typical Applications

Precision component testing, burn-in procedures, bench characterization, and system-level power validation requiring stable, programmable DC sources with protection against transient load changes.

– Compatibility & Integration

Accepts single-phase AC input across multiple voltage ratings. Remote control interfaces support both voltage and resistance-based programming for integration into automated test systems.