EA-PSB 10080-1000 4U Programmable Bidirectional DC Power Supply

The EA-PSB 10080-1000 4U is a high-power, programmable bidirectional DC power supply that integrates the functions of a precision laboratory power source and a regenerative electronic load into a single 4U rack-mount unit. As part of the versatile EA-PSB 10000 4U series, this 30 kW model delivers 0-80V and 0-1000A, making it ideal for demanding applications like high-current battery testing, photovoltaic panel simulation, fuel cell testing, and power aging. Its defining feature is bidirectional energy flow with up to 95.5% efficiency in energy recovery (sink mode), feeding regenerated power back into the AC grid to reduce operating costs and heat dissipation. The unit offers seamless, automatic switching between source and sink modes at the zero-crossing point. Equipped with a color TFT touchscreen (HMI), two programmable rotary knobs, and extensive remote control interfaces (USB, Ethernet, analog, optional digital modules), it provides unparalleled control flexibility. Built-in features include a sophisticated function generator for creating complex voltage/current profiles, master-slave parallel operation for scaling up to 1920 kW, and comprehensive protection circuits (OVP, OCP, OPP, OT, PF) for safe operation.

Key Features

• Bidirectional Power & Energy Recovery: Functions as both a high-precision DC power source and a regenerative electronic load. In sink mode, recovers energy with up to 95.5% efficiency and feeds it back to the AC mains, significantly reducing operating costs and thermal load.
• High Power & Current Output: Delivers 30 kW of continuous power with a wide range of 0-80V and high current of 0-1000A, suitable for testing high-power devices and battery packs.
• Advanced Programmability & Control: Features a 5-inch color TFT touchscreen, configurable rotary knobs, and supports remote control via USB, Ethernet, isolated analog interface (0-5V/0-10V), and optional plug-in modules (CAN, CANopen, Profibus, Profinet, ModBus TCP, EtherCAT, RS232).
• Integrated Function Generator: Generates complex waveforms (sine, triangle, rectangle, trapezoid, arbitrary) and sequences for voltage or current, enabling simulation of dynamic profiles for battery testing, PV curves (EN 50530), fuel cell characteristics, and more.
• Scalable Parallel Operation: Supports master-slave configuration with Share Bus and Master-Slave Bus, allowing parallel connection of up to 64 units of the same series for synchronized systems with power up to 1920 kW.
• Comprehensive Safety & Protection: Includes adjustable over-voltage (OVP), over-current (OCP), over-power (OPP) protections, overtemperature (OT) shutdown, and power fail (PF) monitoring. The 60V model includes a dedicated Safety OVP for SELV/PELV compliance.
• Flexible Data Logging & Profiles: Front USB port supports data logging to USB stick and loading/saving of user profiles, arbitrary function sequences, and PV/FC/IU tables for test automation and repeatability.