Invention Grant
- Patent Title: Short circuit protection for bidirectional switches
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Application No.: US17387084Application Date: 2021-07-28
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Publication No.: US11671087B2Publication Date: 2023-06-06
- Inventor: Muhammad Hussain Alvi , Chandra S. Namuduri
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Cantor Colburn LLP
- Main IPC: H03K17/081
- IPC: H03K17/081 ; H02M1/32 ; H03K17/687

Abstract:
A bidirectional switch fault protection circuit includes a bidirectional switch circuit, a desaturation detection circuit, and a gate driver. The bidirectional switch circuit generates first and second switch voltages based on a direction of electric current. The desaturation detection circuit outputs the first switch voltage in response to the electric current flowing in a first direction and outputs the second switch voltage in response to the electric current flowing in a second direction opposite the first direction. The gate driver receives the first switch voltage in response to the electric current flowing in the first direction and the second switch voltage in response to the electric current flowing in the second direction. The gate driver detects a first short circuit condition based on the first switch voltage and a second short circuit condition based on the second switch voltage.
Public/Granted literature
- US20230033695A1 SHORT CIRCUIT PROTECTION FOR BIDIRECTIONAL SWITCHES Public/Granted day:2023-02-02
Information query
IPC分类: