The Sorensen DLM80-50 is a 4 kW programmable DC power supply housed in a compact 2U rack-mount chassis, engineered for electronics testing, product development, and quality control applications. The unit delivers 0–80 VDC at 0–50 ADC with exceptional output stability, featuring automatic constant voltage/constant current crossover and front-panel programmability via analog control signals.
Technical Specifications
Output Performance
• Voltage: 0–80 VDC
• Current: 0–50 ADC
• Power: 4000 W
• Voltage regulation (line/load): 0.05% + 2 mV
• Current regulation (line/load): 0.1% of rated output
• Output noise: 10 mV RMS typical
• Output ripple: 15 mV maximum at full load
• Transient response: 1% settling within 1 ms for 100%–70% or 70%–100% load step
Physical and Thermal
• Form factor: 2U rack-mount (3.5 inches H × 19 inches W)
• Cooling: Internal fans with overtemperature protection; front-to-rear airflow
• Operating temperature: 0°C to +50°C (no derating)
• Storage temperature: −40°C to +85°C
Input Characteristics
• Input voltage: 200/208 VAC three-phase
• Power factor (single phase): ≥0.98 typical
• Power factor (three phase): 0.95 typical
– Key Features
• Dual operating modes: Constant voltage and constant current with automatic crossover
• 3½ digit LED displays for voltage and current setting and monitoring
• Overvoltage protection with front-panel set screw adjustment
• Selectable analog programming: 0–5 VDC, 0–10 VDC, or 0–5 kΩ resistance via external dip switch
• Remote voltage sense connection for accurate load-end delivery
• Remote monitoring: voltage and current output selectable as 0–5 VDC or 0–10 VDC
• Front-panel preview buttons for OVP, voltage, and current set points
• Comprehensive LED indicators (power on, shutdown, remote, OVP, overtemperature, mode status)
– Optional Interfaces
• IEEE-488.2 GPIB and RS-232
• LXI-compliant Ethernet LAN with RS-232C (16 bit)
• LabVIEW software driver support
– Typical Applications
Designed for electronics testing, product development, and quality control in environments requiring high power density and precise regulation.
