公开(公告)号：US11334009B2

公开(公告)日：2022-05-17

申请号：US17150777

申请日：2021-01-15

申请人： Oki Data Corporation

发明人： Shuichi Fujikura ,  Mitsuhiko Kitagawa ,  Akira Nakayama ,  Kazuya Yamamoto

IPC分类号： G03G15/20 ,  G03G15/00 ,  H02M1/34

摘要： A load controller includes a control device, a switching device, an arc suppression circuit, and a control section. The control device is provided on an electric power supply path between first and second terminals coupled to an alternating-current electric power source, and controls electric power supply to a load provided on the electric power supply path. The switching device is provided on the electric power supply path and is to be in an open state or a closed state. The arc suppression circuit is to suppress discharge at the switching device. The arc suppression circuit is to be set to an enabled state or a limited state. The control section controls operation of the control device, the switching device, and the arc suppression circuit. The control section varies the arc suppression circuit from the limited state to the enabled state after bringing the switching device into the closed state.