The Sorensen DHP80-37 is a high-power programmable DC power supply delivering 0–80 VDC at 0–37 A, rated for 3 kW output. Built for industrial and laboratory environments, it combines precise analog control with multi-mode operation—constant voltage, constant current, and constant power—to support research, development, and automated test applications. The unit features second-generation control technology, low 25 mV RMS ripple, and fast 2 ms transient response. Programming and readback accuracy reach 0.3% of full scale, with output stability of ±0.05% over 8 hours. Remote interfaces include optional IEEE-488.2, RS-232, and isolated analog inputs alongside standard analog control. Auto-sequencing capability stores up to 9 program steps, each running 1 second to 99,999 seconds, for extended test cycles. Comprehensive protection, temperature monitoring, and power-off memory recall ensure safe, repeatable operation across demanding test scenarios.
Technical Specifications
• Output Range: 0–80 VDC, 0–37 A (3 kW maximum)
• Ripple (RMS): 25 mV typical
• Programming Resolution: 0.3% of full scale (voltage and current)
• Programming Accuracy: Voltage ±(0.10% + 0.3% Vmax); Current ±(0.1% to 0.5% of rated output)
• Readback Accuracy: ±(0.3% + 0.3% of full scale output current)
• Stability (8 hours): ±0.05% of maximum rating (post 30-minute warm-up)
• Temperature Coefficient: Voltage 0.02%/°C; Current 0.03%/°C of rated values
• Transient Response: 2 ms to steady state (within 2% Vmax for 30% load step); 10 ms recovery to within 2% of original
• Operating Modes: Constant voltage, constant current, constant power
• Input Voltage: Three-phase options: 360–440 VAC (M1), 432–528 VAC (M2), or 190–253 VAC (M3, 3 kW only); 47–63 Hz; power factor 0.72 minimum
– Key Features
• Auto-sequencing: up to 9 steps per program; each step 1 to 99,999 seconds
• Programmable via front-panel keypad or remote 5V/10V analog inputs
• Nine memory locations for frequently used setups
• Remote on/off control via contact closure (6–120 VDC, 12–240 VAC, TTL/CMOS)
• Output voltage and current monitoring (0–10 V rear panel)
• OVP limit adjustment and summary fault status indication
• Power-off memory restores last programmed voltage
– Typical Applications
Automated test environments, laboratory power conditioning, industrial burn-in testing, and development bench work requiring stable, repeatable DC power with remote control and extended program cycles.
– Compatibility & Integration
Standard analog interface included. Optional interfaces: IEEE-488.2, RS-232, and isolated analog input control for system integration.
