公开(公告)号：US20210226444A1

公开(公告)日：2021-07-22

申请号：US17154562

申请日：2021-01-21

Applicant: Infineon Technologies AG

Inventor： Jie Fang ,  Heinrich Guenther Heiss

IPC: H02H9/04 ,  H02J7/00

Abstract: Examples relate to an overvoltage protection circuit for a device interface adapted to convey at least electrical energy. The overvoltage protection circuit includes a first and a second terminal and a normally-on transistor. The normally-on transistor is electrically coupled to the first and second terminal. The overvoltage protection circuit further includes a control circuit configured to switch off the normally-on transistor as a function of at least one of a voltage at the first terminal and a voltage at the second terminal. Further examples relate to a device including an interface and an overvoltage protection circuit. The first terminal of the overvoltage protection circuit is electrically coupled to the interface.

公开(公告)号：US11791624B2

公开(公告)日：2023-10-17

申请号：US17154562

申请日：2021-01-21

Applicant: Infineon Technologies AG

Inventor： Jie Fang ,  Heinrich Guenther Heiss

IPC: H02H9/04 ,  H02J7/00 ,  H01L27/02

CPC classification number: H02H9/046 ,  H02J7/00308 ,  H01L27/0248

Abstract: Examples relate to an overvoltage protection circuit for a device interface adapted to convey at least electrical energy. The overvoltage protection circuit includes a first and a second terminal and a normally-on transistor. The normally-on transistor is electrically coupled to the first and second terminal. The overvoltage protection circuit further includes a control circuit configured to switch off the normally-on transistor as a function of at least one of a voltage at the first terminal and a voltage at the second terminal. Further examples relate to a device including an interface and an overvoltage protection circuit. The first terminal of the overvoltage protection circuit is electrically coupled to the interface.