The Sorensen DHP40-330 is a programmable DC power supply delivering 40 V at 330 A (13.2 kW) for demanding industrial and laboratory applications. This rack-mount unit operates in constant voltage, constant current, and constant power modes, with output voltage programming resolution of 0.3% of full scale and current programming accuracy of ±0.3% + 0.3% of maximum output. Line and load regulation hold voltage to 0.1% of rated maximum and current to 0.5%, while stability maintains ±0.05% of set point after 8-hour warm-up at fixed conditions. Transient response recovers within 2% of original value in 10 ms following a 30% step load change.
Technical Specifications
• Output: 0–40 VDC, 0–330 A, 13.2 kW
• Programming Resolution: Voltage and current at 0.3% of full scale
• Programming Accuracy: Voltage ±(0.10% + 0.3% of 40 V); Current ±(0.3% + 0.3% of 330 A)
• Readback Accuracy: Voltage 0.1% of rated output; Current 0.5% of rated output
• Load & Line Regulation: Voltage 0.1%; Current 0.5% of maximum rated output
• Stability: ±0.05% of set point after 8-hour warm-up
• Temperature Coefficient: 0.02%/°C (voltage); 0.03%/°C (current)
• Transient Response: Within 2% recovery in 10 ms at 30% load step
• AC Input Power Factor: 0.72 minimum
• Line Regulation: 0.1% for voltage, 0.5% for current
– Key Features
• Three operational modes: constant voltage, constant current, constant power
• Programmable overvoltage protection (OVP) with adjustable limit
• Remote sensing terminals with maximum 3% line drop or 2 V per line
• Auto-sequence programming up to 9 steps, each configurable 1–99,999 seconds
• Non-volatile memory stores front-panel parameters
• “LAST SET” function restores prior voltage and current settings on power-up
• Optional IEEE-488.2, RS-232, and isolated analog remote programming interfaces
• Standard analog remote programming
– Typical Applications
High-current battery charging, electroplating, electrolysis, thermal stress testing, and R&D environments requiring precise multi-mode DC regulation.
– Compatibility & Integration
Part of the DHP Series family spanning 140+ models (2–30 kW). Supports external voltage sensing at load terminals to compensate for line drop. Accepts various AC input voltages at standard frequency.
