公开(公告)号：US20150214742A1

公开(公告)日：2015-07-30

申请号：US14583805

申请日：2014-12-29

申请人： Delta Electronics (Shanghai) Co., Ltd.

发明人： Xiu-Feng YU ,  Zhi-Jiang DENG ,  Guo-Dong YIN ,  Ben WU

IPC分类号： H02J4/00 ,  H02H3/18 ,  H02H7/12

CPC分类号： H02J4/00 ,  H02H3/18 ,  H02H7/1203 ,  H02J1/102 ,  H02J1/108 ,  H02J2001/106 ,  Y10T307/729

摘要： A multi-power supply system and a control method thereof are disclosed. The multi-power supply system includes a first power-supply unit, a second power-supply unit, a switching unit, and a control unit. The power-supply unit comprises a reverse current prevention circuit, a converter circuit, and an input circuit. The switching unit is electrically coupled to the first power-supply unit and the second power-supply unit. When the first and second input circuits are in normal operation, the control unit controls the switching unit to be turned off to allow the first power-supply unit and the second power-supply unit to supply power to a load. When one of the first and second input circuits is in abnormal operation, the control unit controls the switching unit to be turned on. The switching unit cooperates with the first and second reverse current prevention circuits to achieve the switching of input.

摘要翻译： 公开了一种多电源系统及其控制方法。 多电源系统包括第一电源单元，第二电源单元，开关单元和控制单元。 电源单元包括反向电流防止电路，转换器电路和输入电路。 开关单元电耦合到第一电源单元和第二电源单元。 当第一和第二输入电路处于正常操作时，控制单元控制切换单元被关闭以允许第一电源单元和第二电源单元向负载供电。 当第一和第二输入电路之一处于异常操作时，控制单元控制开关单元导通。 开关单元与第一和第二反向电流防止电路协作以实现输入的切换。