Invention Grant
- Patent Title: Optimization of power module performance via parasitic mutual coupling
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Application No.: US17849676Application Date: 2022-06-26
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Publication No.: US11936368B2Publication Date: 2024-03-19
- Inventor: Blake Whitmore Nelson , Brian DeBoi , Daniel John Martin
- Applicant: Wolfspeed, Inc.
- Applicant Address: US NC Durham
- Assignee: WOLFSPEED, INC.
- Current Assignee: WOLFSPEED, INC.
- Current Assignee Address: US NC Durham
- Agency: Dority & Manning, P.A.
- Main IPC: H03K17/041
- IPC: H03K17/041 ; H03K17/687

Abstract:
The present disclosure relates to a power module with a power path extending through a first field-effect transistor (FET) and a second FET. A primary conductive structure connecting the first FET and the second FET in series provides a primary parasitic inductor within the power path. A first secondary conductive structure connected to both a gate and a source of the first FET provides a first secondary parasitic inductor within a first gate path, and a second secondary conductive structure connected to both a gate and a source of the second FET provides a second secondary parasitic inductor within a second gate path. The first secondary conductive structure and the second secondary conductive structure are configured such that mutual coupling between the first secondary parasitic inductor and the primary parasitic inductor and mutual coupling between the second secondary parasitic inductor and the primary parasitic inductor are substantially symmetrical.
Public/Granted literature
- US20230421145A1 OPTIMIZATION OF POWER MODULE PERFORMANCE VIA PARASITIC MUTUAL COUPLING Public/Granted day:2023-12-28
Information query
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