Switching mode power supplies with controlled synchronization
    2.
    发明授权
    Switching mode power supplies with controlled synchronization 失效
    开关模式电源具有受控同步

    公开(公告)号:US5130561A

    公开(公告)日:1992-07-14

    申请号:US574974

    申请日:1990-08-29

    IPC分类号: H02M1/14 H02M3/28

    摘要: Two pulse-width modulated power supplies are synchronized to operate at 180.degree. of phase shift to reduce the peak amplitude of the instantaneous current drawn from the DC input bus. The circuit includes means for disabling the synchronization upon detection of an undervoltage fault condition on the output of either supply. This feature allows frequency programming techniques to be used to provide foldback current limiting for either supply without affecting the operation of the other supply.

    摘要翻译: 两个脉冲宽度调制电源同步工作在180°的相移,以减少从直流输入总线吸取的瞬时电流的峰值幅度。 该电路包括用于在检测到任一电源的输出上的欠电压故障状况时禁止同步的装置。 该功能允许频率编程技术用于为任一电源提供折返电流限制,而不会影响另一个电源的操作。