The Sorensen DCS150-20 is a 3 kW DC power supply built on switch-mode technology for demanding industrial and laboratory applications requiring stable, precise voltage and current outputs. This low-profile unit delivers up to 150 VDC at 20 A with 0.1% line and load regulation, ±0.05% stability over 8 hours, and sub-millisecond transient response. Dual operating modes—Constant Voltage and Constant Current with automatic crossover—accommodate diverse load conditions. Crowbar-type overvoltage protection is adjustable from 5–110% of rated output via front panel or remote selection. The supply accepts three-phase 190–250 VAC or single-phase 200–250 VAC input at 47–63 Hz and includes remote sensing to compensate for power lead losses up to 1 V per line.
Technical Specifications
• Output: 150 VDC, 20 A maximum; 3 kW maximum power
• Voltage regulation: 0.1% (line and load); ±0.05% stability over 8 hours after 30-minute warm-up
• Voltage resolution: 0.02%; temperature coefficient 0.02%/°C
• Current regulation: 0.1% (line and load); temperature coefficient 0.03%/°C
• Transient recovery: <1 ms to 1% of steady-state voltage for 70–100% load transitions
• Input: 190–250 VAC 3-phase (14 A typical) or 200–250 VAC single-phase (26 A typical); 47–63 Hz; maximum line impedance 1 Ω
• Operating modes: Constant Voltage and Constant Current with automatic crossover
– Key Features
• Adjustable crowbar overvoltage protection (5–110% of rated output)
• Remote sensing capability for lead loss compensation
• TTL, AC, and DC remote shutdown inputs
• LED OVP status indicator
• Multiple control interface options: LXI-compliant Ethernet/RS-232C (16-bit), IEEE-488.2/RS-232C (12-bit), isolated analog programming, multichannel slave interface
– Typical Applications
Precision bench testing, burn-in operations, electroplating, materials research, and systems requiring stable DC excitation with fast load-step response.
– Compatibility & Integration
Supports local front-panel control and remote operation via rear connector J3 with selectable voltage, current, and OVP programming. Remote monitor and interlock functions enable integration into automated test systems and production environments.
