公开(公告)号：US20210036524A1

公开(公告)日：2021-02-04

申请号：US16528248

申请日：2019-07-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Austin WOMAC ,  Eric SOUTHARD ,  Orlando LAZARO

IPC: H02J7/00 ,  H02M7/48

Abstract: Aspects of the disclosure include a including a first sense transistor having a gate and a drain configured to couple in parallel with a high-side transistor and a source terminal coupled to a first node, and a second sense transistor having a gate and a drain configured to couple in parallel with a low-side transistor, and a source terminal coupled to a third node. The circuit further includes a first comparator circuit having a first input coupled to the first node, a second input coupled to a second node, and an output, a second comparator circuit having a first input coupled to the third node, a second input coupled to a ground node, and an output, and a logic circuit having first input coupled to the output of the first comparator circuit, a second input coupled to the output of the second comparator circuit, and an output.