The Sorensen DHP25-266 is a high-power programmable DC power supply engineered for demanding industrial, laboratory, and research environments. Delivering 25V at 266A (6.65 kW), this unit provides stable DC output with ±0.05% stability after 8-hour warm-up and supports three operational modes: constant voltage, constant current, and constant power with automatic crossover. The DHP25-266 combines tight voltage regulation (0.1% line/load) and current regulation (0.5% line/load) with 2 ms transient response to 2% settling on 30% step load changes.
Technical Specifications
• Output Power: 6.65 kW (25V × 266A)
• Voltage Regulation: 0.1% of maximum rated output (line or load)
• Current Regulation: 0.5% of maximum rated output (line or load)
• Transient Response: 2 ms to steady state, within 2% of Vmax for 30% step load
• Stability: ±0.05% of set point (after 8-hour warm-up, fixed line/load/temperature)
• Temperature Coefficient: 0.02%/°C (voltage); 0.03%/°C (current)
• Output Ripple: ≤1% RMS of maximum rated voltage
• Programming Resolution: 0.3% of full scale (voltage and current)
• Programming Accuracy: Voltage 0.10% + 0.3% Vmax; Current 0.3% + 0.3% Imax
• Readback Accuracy: Voltage 0.10% + 0.3% FS; Current 0.3% + 0.3% FS
• Readback Resolution: 0.3% of full scale (voltage and current)
– Key Features
• Three operational modes with automatic crossover
• Auto-step programming: up to 9 steps per sequence, maximum 27.7 hours duration
• Step timing: 1 second to 99,999 seconds per step
• Nine internal memory locations for preset configurations
• Front-panel keypad for voltage, current, and power adjustment
• Standard analog inputs; optional IEEE-488.2, RS-232, and isolated analog input interfaces
• Modular rackmount design (19″ width, likely 10.5″ height)
– Typical Applications
• High-current power testing and validation
• Industrial electroplating and metal finishing processes
• Battery charging and discharge cycling
• Motor and motor-drive testing
• Accelerated stress testing of high-power components
– Compatibility & Integration
Remote control via analog interface or optional IEEE-488.2 (GPIB), RS-232, and isolated analog input modules. On-board auto-sequencing eliminates external controller dependency for multi-step test profiles.
