公开(公告)号：US10693292B2

公开(公告)日：2020-06-23

申请号：US15678991

申请日：2017-08-16

Applicant: NXP B.V.

Inventor： Shenglan Tang ,  Jian Qing ,  Xindong Duan

IPC: H02H9/00 ,  H02H9/04

Abstract: A surge protection circuit includes a DC trigger circuit that generates a trigger signal when a surge pulse occurs, and a surge protection device, coupled to the DC trigger circuit, that generates a clamp voltage as an output voltage of the surge protection circuit and conducts surge currents to ground in response to the trigger signal. A feedback circuit is provided between the surge protection device and the DC trigger circuit. The feedback circuit lowers the clamp voltage so that it does not exceed a failure voltage of the surge protection device.

公开(公告)号：US20180138696A1

公开(公告)日：2018-05-17

申请号：US15678991

申请日：2017-08-16

Applicant: NXP B.V.

Inventor： Shenglan Tang ,  Jian Qing ,  Xindong Duan

IPC: H02H9/04

CPC classification number: H02H9/041

Abstract: A surge protection circuit includes a DC trigger circuit that generates a trigger signal when a surge pulse occurs, and a surge protection device, coupled to the DC trigger circuit, that generates a clamp voltage as an output voltage of the surge protection circuit and conducts surge currents to ground in response to the trigger signal. A feedback circuit is provided between the surge protection device and the DC trigger circuit. The feedback circuit lowers the clamp voltage so that it does not exceed a failure voltage of the surge protection device.