公开(公告)号：EP4170841A1

公开(公告)日：2023-04-26

申请号：EP22203265.8

申请日：2022-10-24

申请人： Silergy Semiconductor Technology (Hangzhou) Ltd

发明人： HACKETT, Nathan

IPC分类号： H02H3/38

摘要： A fault detection method and device are provided. By performing a sampling operation to obtain a first voltage signal and a first current signal from a circuit path, and phases of the first voltage signal and the first current signal are adjusted to obtain a second voltage signal and a second current signal. The second voltage signal and the second current signal are transmitted to a pre-trained fault detection network for processing, such that a fault detection result is obtained. When the fault detection result indicates presence of a fault, the circuit path is controlled to be disconnected. Therefore, a fault may be detected based on the phase information and the amplitude information of the current signal and the voltage signal from the circuit path, which improves the accuracy of the fault detection.