The Sorensen DLM40-75E is a 3000 W programmable DC power supply delivering stable, continuously variable output voltage and current in a compact 2U chassis. Operating across 0–40 VDC and 0–75 ADC with automatic constant voltage/constant current crossover, the unit combines high power density with exceptional output quality—ripple and noise as low as 2.5 mVrms and 15 mV peak-to-peak—making it suitable for benchtop deployment or system integration requiring minimal footprint.
Technical Specifications
• Output Power: 3000 W
• Output Voltage: 0–40 VDC
• Output Current: 0–75 ADC
• Input Supply: 180–264 VAC, 47–63 Hz, single or three-phase (200/230 VAC single-phase or 200/208 VAC three-phase for 3 kW models)
• Power Factor Correction: ≥0.98 (single-phase), 0.95 typical (three-phase)
• Output Ripple & Noise: 2.5 mVrms typical, 15 mV peak-to-peak, 10 mV RMS noise
• Load Transient Response: Within 1% of steady-state within 1 ms (100%–70% or 70%–100% load step); typically 1.5 ms for ≥50% Vmax step changes
• Stability: ±0.05% of maximum voltage or current over 8 hours (post 15-minute warm-up, fixed line/load/temperature)
– Key Features
• Front-panel knobs with 3½-digit LED displays for voltage and current setting
• Power on/off, output enable/standby, and local/remote switching
• Voltage, current, and overvoltage preview push-buttons
• Adjustable overvoltage limit with front-accessible set screw
• Constant voltage and constant current operation modes with LED status indication
• Analog programming: selectable 0–5 VDC, 0–10 VDC, or 0–5 kΩ
• Optional IEEE-488.2 and RS-232C interfaces (12-bit, M9E option)
• Optional optically isolated analog programming
• Remote voltage/current monitoring with user-selectable 0–5 VDC or 0–10 VDC output
• Programmable over-voltage protection (OVP) via front panel or external source
– Typical Applications
Precision DC power delivery for test benches, equipment validation, system integration, and applications demanding low-noise regulated power with fast transient response.
– Compatibility & Integration
Analog control and monitoring via 0–5 VDC, 0–10 VDC, or 0–5 kΩ interfaces. Optional digital communication via IEEE-488.2 and RS-232C (M9E option) enables remote command and telemetry in automated test environments.
