The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Apr. 12, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Benjamin S. Ngu, Royal Oak, MI (US);
Michael Z. Pieszala, Panama City, FL (US);
Khorshed Mohammed Alam, Canton, MI (US);
Yilun Luo, Ann Arbor, MI (US);
Muhammad Hussain Alvi, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A gate drive system for a multi-phase power inverter includes a gate controller, a gate drive circuit, and a hybrid switch power module that is integrated into a phase leg of the multi-phase power inverter. The hybrid switch power module includes a first semiconductor switch connected in parallel with a second semiconductor switch. The first semiconductor switch has first performance characteristics, and the second semiconductor switch has second performance characteristics. The gate drive circuit includes a gate driver, a first variable resistance circuit, and a second variable resistance circuit. The first variable resistance circuit is powered via a first low-voltage DC power bus, and the second variable resistance circuit is powered via a second low-voltage DC power bus. The first variable resistance circuit connects to a first gate of the first semiconductor switch, and the second variable resistance circuit connects to a second gate of the second semiconductor switch.