The Kepco BOP50-20MG is a 1000 W bipolar operational power supply delivering ±50 V DC at ±20 A with full four-quadrant source/sink capability. It operates as both a precision power source and electronic load, transitioning smoothly through zero voltage and current without polarity switching. The unit employs high-efficiency switch-mode topology with bidirectional power factor correction (PFC) for energy recuperation during sink-mode operation, achieving power factor greater than 0.97 and meeting EN61000-3-2 harmonic distortion limits.
## Technical Specifications
• **Output Power:** 1000 W
• **Voltage Range:** ±50 V DC
• **Current Range:** ±20 A DC
• **Output Impedance:** 2.5 mΩ series resistance
• **Output Inductance:** 0.2 µH
• **Output Capacitance:** 0.35 µF
• **AC Input:** 176–264 VAC
• **Operation Mode:** Full 4-quadrant source/sink with energy recuperation
• **Harmonic Performance:** Meets EN61000-3-2 limits; power factor >0.97
• **EMI Filtering:** Built-in EN55022 Class B input filter
## Key Features
• Full digital control with front panel keypad and menu-driven interface
• Large graphic LCD for real-time display of settings and output values
• GPIB interface (MG suffix) supporting SCPI and IEEE 488.2 protocols with VISA drivers
• RS-232 and analog I/O connectivity for remote operation and integration
• Adjustable calibration stored in non-volatile, password-protected memory
• Comprehensive protection: heatsink overtemperature shutdown, main switch overcurrent shutdown, resettable output shutdown via digital control
• CE marked per EN61010-1 Low Voltage Directive and EMC Directive 89/336/EEC
## Typical Applications
• Large magnet and motor drive systems
• Battery exercising and characterization
• Solar cell array characterization
• Electrochemical process power conditioning
## Compatibility & Integration
GPIB connectivity enables seamless automation and remote control within automated test environments. RS-232 and analog I/O provide alternative integration paths for legacy or parallel control schemes. External sense resistor (0.01 Ω, Kepco P/N 115-2997) requires mounting on a heatsink with minimum 36 square inch surface area; forced cooling recommended with Kepco heatsink P/N 136-0451.
