公开(公告)号：EP3687018A1

公开(公告)日：2020-07-29

申请号：EP19204797.5

申请日：2019-10-23

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

发明人： YING, JianPing ,  LI, Wuying ,  QIAO, Lifeng ,  LIU, Teng

IPC分类号： H02H9/04

摘要： Disclosed is a surge control circuit, including: an absorption circuit including an absorption element and a bypass switch which are connected in series, a switch group connected in parallel to both ends of the absorption circuit and a first control circuit electrically connected to the switch group and bypass switch respectively. Normally, the first control circuit controls the switch group and the bypass switch to turn on simultaneously, makes the current flow through the switch group; when detecting the current is greater than or equal to the first preset current value, or the current increase rate is greater than or equal to the preset current rate of change, the first control circuit controls the switch group to turn off, makes the current flow through the absorption circuit; when detecting the current is less than the second preset current value, the first control circuit controls the bypass switch to turn off.

公开(公告)号：EP3678296A1

公开(公告)日：2020-07-08

申请号：EP19190357.4

申请日：2019-08-06

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

发明人： LIU, Teng ,  QIAO, Lifeng ,  ZHANG, Dehui ,  YING, JianPing

IPC分类号： H03K17/691 ,  H02H7/26

摘要： Disclosed is a circuit breaker apparatus, including a first switching assembly, a first controller, a second switching assembly and a second controller. The first switching assembly is connected in series between a positive pole of a power supply and a load. The first switching assembly includes multiple first switching units in series. The first controller is electrically connected to a first pre-set reference potential of the first switching assembly. The first controller is electromagnetically coupled with each first switching unit through a first transformer unit. The second switching assembly is connected in series between a negative pole of the power supply and the load. The second switching assembly includes multiple second switching units in series. The second controller is electrically connected to a second pre-set reference potential of the second switching assembly. The second controller is electromagnetically coupled with each second switching unit through a second transformer unit.