公开(公告)号：EP3484002A1

公开(公告)日：2019-05-15

申请号：EP16910017.9

申请日：2016-07-26

申请人： Huawei Technologies Co., Ltd.

发明人： ZHANG, Haichao ,  XIONG, Ying ,  XIAO, Zhi

IPC分类号： H02H9/02

摘要： An electrostatic protection circuit includes: a protection unit, configured to suppress an ESD current or an EOS current, where a first end of the protection unit is electrically connected to a first pin of a target interface, a second end of the protection unit is electrically connected to a second pin of a protected circuit, and the first pin is any pin of the target interface; a switch unit, connected to the protection unit in parallel; and a switch control unit, configured to control the switch unit to be open or closed, where an input end of the switch control unit is electrically connected to a power pin or a control signal pin of the protected circuit, and an output end of the switch control unit is electrically connected to a control end of the switch unit.