公开(公告)号：US20230370056A1

公开(公告)日：2023-11-16

申请号：US18144456

申请日：2023-05-08

Applicant: STMicroelectronics S.r.l.

Inventor： Vanni POLETTO ,  Fabrizio LOI

IPC: H03K17/082 ,  B60R16/033 ,  H02M1/32

CPC classification number: H03K17/0822 ,  B60R16/033 ,  H02M1/32 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: An HS switching transistor is coupled between a high-side node and a switching node. An LS switching transistor is coupled between the switching node and a low-side node. An inductive load is coupled to the switching node in a way where one of the HS/LS switching transistors is freewheeling. In response to detection of a short circuit occurring at the switching node with the freewheeling switching transistor in the conductive state: an electrical signal at the switching node is sensed, a comparison is made between the sensed electrical signal and a threshold level, and a driving signal is provided to control freewheeling switching transistor to switch to the non-conductive state when the comparison indicates that the electrical signal has reached the threshold level.