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OBC Aging Power Supply – JN503
The JN503 series is a bidirectional high-voltage DC-DC module specially developed for aging test of OBC/charging pile modules, energy storage systems, DC bus microgrid systems and secondary utilization of retired batteries.
It takes DC bus as input and features dual functions of power supply and load on the output side. Adopting high-frequency transformer isolation, full SiC devices and fully digital dual-DSP control architecture, it achieves high efficiency, high power density, flexible parallel expansion and high operational reliability for various application scenarios.
Product Description

Specifications

  • Bidirectional DC-DC: 700V input, 40~1000V output
  • Voltage & Current Accuracy: 1% FS
  • Efficiency: 95% (Source Mode) / 90% (Load Mode)
  • Single unit power: 15 kW / 8 kW, parallel connection supported

Features

  • Bidirectional energy transmission, automatic seamless switching between source and load modes.
  • Full SiC design for outstanding energy efficiency.
  • 750V DC input, compatible with mainstream DC bus solutions.
  • High-frequency transformer isolation ensures high reliability of bidirectional conversion; built-in controllable switch realizes effective power-off isolation.
  • Modular structure for easy installation and flexible parallel expansion.
  • Fully digital dual-DSP control for stable and reliable operation.
  • Main applications: aging test for OBC and charging pile modules, energy storage systems, DC bus microgrids, secondary utilization of retired batteries, etc.
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