公开(公告)号：US20190222021A1

公开(公告)日：2019-07-18

申请号：US16360343

申请日：2019-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao Zan ,  Qiming Tang ,  Guangrong Zhou ,  Jun Yan

IPC: H02H9/04 ,  H02H3/20

CPC classification number: H02H9/046 ,  H02H3/202 ,  H02H9/04 ,  H02H9/044 ,  H04B3/00

Abstract: An interface protection circuit and a device interface are disclosed. The interface protection circuit includes a capacitor and a transient voltage suppressor (TVS) transistor. A first end of the capacitor is connected to a connection port, a second end of the capacitor is connected to a first end of the TVS transistor and an interface chip, and a second end of the TVS transistor is grounded.

公开(公告)号：US11509134B2

公开(公告)日：2022-11-22

申请号：US16360343

申请日：2019-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao Zan ,  Qiming Tang ,  Guangrong Zhou ,  Jun Yan

IPC: H02H9/04 ,  H04B3/00 ,  H02H3/20

Abstract: An interface protection circuit and a device interface are disclosed. The interface protection circuit includes a capacitor and a transient voltage suppressor (TVS) transistor. A first end of the capacitor is connected to a connection port, a second end of the capacitor is connected to a first end of the TVS transistor and an interface chip, and a second end of the TVS transistor is grounded.