The Sorensen SRL40-6 is a 40 Vdc, 6 Adc, 240 W DC power supply engineered for precision electronic testing and development. It delivers stable, regulated output across constant voltage and constant current modes with automatic crossover, eliminating the need for manual switching between operating regimes. Front panel controls and rear terminal connections enable straightforward bench operation and integration into automated test systems. Built-in overvoltage protection with a 10 µs crowbar circuit safeguards connected devices, with adjustment accessible from the front panel without powering down or disconnecting the load.
Technical Specifications
DC Output
• Voltage range: 0–40 Vdc
• Current rating: 6 Adc (at 55°C, de-rated above this temperature)
• Power output: 240 W
Constant Voltage Mode
• Voltage regulation (line and load combined): 0.01% or 2 mV, whichever is greater
• Ripple: 200–700 µV rms
• Stability (8 hours after 30-minute warm-up): 0.025% + 0.5 mV
• Temperature coefficient: 0.01% + 0.2 mV/°C
• Transient response: 150 µs typical to within ±10 mV for 0–100% step load change
• Remote sensing: 1 V maximum drop per load lead (rear terminal connection)
Constant Current Mode
• Current regulation (line and load combined): 0.02% + 6 mA
• Minimum current: Adjustable to zero
• Temperature coefficient: 0.01% + 2 mA/°C
• Stability (8 hours after 30-minute warm-up): 0.03% + 10 mA typical
• Ripple: 0.5–10 mA rms
AC Input
• Voltage: 105–125 Vac single phase
• Frequency: 47–63 Hz without derating
• Maximum current: 13.2 Aac
– Key Features
• Automatic crossover between voltage and current modes with no overshoot at turn-on, turn-off, or power interrupt
• Adjustable overvoltage protection (crowbar) with 10 µs operation time; front panel access for checking and adjustment
• Remote sensing capability for load lead voltage drop compensation
• Programming support: resistance programming at 200 Ω/V standard (adjustable to 1000 Ω/V), voltage programming at 1 V/V standard
• Input fuse holder integrated into the unit
– Typical Applications
Laboratory power for component characterization, device burn-in testing, and prototype validation. Industrial test environments demanding stable, programmable DC output with built-in fault protection.
– Compatibility & Integration
Rear terminals accommodate output, remote sensing, and programming signal connections. Front panel controls support manual voltage and current setting. Remote voltage or resistance programming available via rear connections.
