EA-PSB 10200-50 2U Programmable Bidirectional DC Power Supply

The EA-PSB 10200-50 2U is a high-performance, bidirectional DC power supply that also serves as a programmable electronic load, part of the EA-PSB 10000 2U series. This 3000W model delivers a wide output range of 0-200V and 0-50A, making it a versatile solution for demanding applications. It features exceptional precision with voltage regulation accuracy (CV) of ≤0.05% FS and current display accuracy of ≤0.1% FS. With fast dynamic response (10-90% CC rise/fall time ≤10ms, 10-90% CV rise/fall time ≤20ms) and low ripple (30mV rms), it ensures clean, stable power for sensitive devices. Its key innovation is bidirectional operation with energy recuperation, feeding up to 94.5% of absorbed energy back into the AC grid in sink mode. The unit offers extensive control via a 5" color TFT touchscreen, rotary knobs, and multiple remote interfaces (USB, Ethernet, Analog, optional digital modules). Designed for 19" rack mounting (2U height), it supports parallel master-slave operation (up to 64 units) and includes a built-in function generator for complex waveform simulation, battery testing, and photovoltaic (PV) or fuel cell (FC) characteristic emulation.

Key Features

• Bidirectional Power & Energy Recovery: Functions as both a precise DC power source and an electronic load (sink). In sink mode, it recuperates energy with up to 94.5% efficiency, feeding it back to the AC mains.
• High Power & Wide Range: Delivers 3000W of power with a 0-200V voltage range and a 0-50A current range (derated to 1500W on 110-127V AC input).
• Exceptional Precision & Stability: Offers superior voltage regulation (CV load regulation ≤0.05% FS) and current display accuracy (≤0.1% FS) for reliable testing.
• Fast Dynamic Response: Features quick current transition times (10-90% CC ≤10ms) and voltage transition times (10-90% CV ≤20ms) for dynamic load testing.
• Comprehensive Control & Interfaces: Equipped with a user-friendly 5" capacitive touchscreen, two rotary encoders, and built-in remote control via USB, Ethernet, and isolated analog interface (D-Sub 15). Optional plug-in modules (CAN, Profibus, Profinet, ModBus TCP, EtherCAT, etc.) are available.
• Advanced Built-in Function Generator: Generates standard waveforms (sine, triangle, rectangle, trapezoid, ramp) and supports complex arbitrary sequences (99 points), battery testing, and PV/FC curve simulation for comprehensive application testing.
• Scalable System Integration: Supports parallel operation of up to 64 units via Master-Slave and Share bus for higher power or current requirements.
• Robust Safety & Protection: Includes fully adjustable OVP, OCP, OPP protections, overtemperature shutdown, and comprehensive insulation for safe operation.