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This article studies a switching circuit between the main power supply and the cold backup power supply. Including logic judgment circuit, one-way delay circuit, and hold up capacitor charging and discharging circuit. The above switching circuit can effectively solve the problem of brief power outage during the switching process. Ensure that at any time there is a problem with the main power supply, the backup power supply can quickly respond and take over power output. At the same time, when the main power supply returns to normal, it can be switched back to the main power supply for power supply. The uninterrupted switching function of the three redundant input power supply in PCM has been achieved.

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Research and Implementation of Switching Mechanism for Cold Backup Converter

  • 会议论文

  • 发表日期：

    2025年

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  • Zihe Li,
  • Zhenyu Zhao,
  • Dong Gao,
  • Guofei Teng,
  • Kai Dong,
  • Fei Feng

摘要

This article studies a switching circuit between the main power supply and the cold backup power supply. Including logic judgment circuit, one-way delay circuit, and hold up capacitor charging and discharging circuit. The above switching circuit can effectively solve the problem of brief power outage during the switching process. Ensure that at any time there is a problem with the main power supply, the backup power supply can quickly respond and take over power output. At the same time, when the main power supply returns to normal, it can be switched back to the main power supply for power supply. The uninterrupted switching function of the three redundant input power supply in PCM has been achieved.