GW Instek PSW-720L22 Dual-Channel DC Power Supply

Overview

The GW Instek PSW-720L22 is a dual-channel, wide-range output programmable DC power supply with 720W maximum power from the PSW-Multi series. It features intelligent CC/CV priority mode selection to protect sensitive devices such as LEDs and batteries from damaging inrush currents during power-on events.

The power supply offers flexible voltage configurations from 30V to 800V, with synchronized channel operation (latency under 0.1ms) and adjustable slew rate control for smooth transitions. An advanced web server enables remote SCPI command execution, real-time data logging at 1-second intervals, and automated sequence editing for complex test procedures. Configurable OVP and OCP protection ensures device safety across various load conditions.

Key Features

• 720W maximum output power with dual-channel capability
• Wide voltage range: 30V, 40V, 80V, 160V (low), 250V, 800V (high)
• Channel synchronization latency less than 0.1ms
• CC/CV priority mode: enables CC mode at power-on to prevent device-damaging inrush currents
• Adjustable slew rate: user-selectable rise/fall times for controlled voltage and current transitions
• Overvoltage Protection (OVP) and Overcurrent Protection (OCP) with configurable thresholds (default 110%)
• Advanced web server: remote SCPI command execution, data logging, sequence editing
• Standard interfaces: USB Host/Device, LAN, analog control/monitoring terminal
• Optional interfaces: GPIB-USB adapter, RS232-USB cable
• Bleed circuit for accelerated voltage fall time
• USB sequence storage for automated test execution
• LabVIEW driver and data logging software support

Applications

• LED I-V curve characterization and testing
• Battery charging and discharging cycle verification
• Power device design validation with controlled slew rates
• Manufacturing test automation with preset sequences
• Device protection from high inrush currents
• Lighting device and capacitor load testing