公开(公告)号：US20150357813A1

公开(公告)日：2015-12-10

申请号：US14297650

申请日：2014-06-06

申请人： ACTRON TECHNOLOGY CORPORATION

发明人： CHI-KAI WU ,  CHIA-SUNG YU ,  CHIH-CHUN LU

IPC分类号： H02H9/02

CPC分类号： H02P29/04 ,  G01R31/025 ,  G01R31/40 ,  H02P1/04 ,  H02P9/48 ,  H02P29/0243 ,  H02P2101/45

摘要： A short circuit detection circuit and a short circuit detection method for a multi-phase rectifier are provided, which are used for detecting conditions of a spectrum of a FWR signal outputted from the multi-phase rectifier in the frequency domain. Next, determining whether the detected signal indicating the amplitude of the frequency of the AC signal is greater than or equal to the reference signal, so as to determine whether the multi-phase rectifier has a short circuit condition. Therefore, the short circuit detection circuit and the short circuit detection method do not have any requirements for configuring a short circuit detection element on each current path of the multi-phase rectifier, so that the power loss and the cost can be reduced effectively.

摘要翻译： 提供一种用于多相整流器的短路检测电路和短路检测方法，用于检测在频域中从多相整流器输出的FWR信号的频谱条件。 接下来，确定表示AC信号的频率的幅度的检测信号是否大于或等于参考信号，以便确定多相整流器是否具有短路状态。 因此，短路检测电路和短路检测方法对于在多相整流器的各电流路径上配置短路检测元件没有任何要求，能够有效地降低功率损耗和成本。