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:
Dec. 10, 2019
Filed:
Feb. 06, 2019
GM Global Technology Operations Llc, Detroit, MI (US);
Mohammed K Alam, Canton, MI (US);
Mohammad N. Anwar, Van Buren Township, MI (US);
Syed M. Kadry, Grand Blanc, MI (US);
Korobi Basher, Rochester Hills, MI (US);
Goro Tamai, Bloomfield Hills, MI (US);
William R. Cawthorne, Milford, MI (US);
Subramanian Vadula, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A switching circuit includes a semiconductor switch having a Gate terminal, and includes first, second, third, and fourth Gate resistors. The Gate resistors have upstream and downstream ends relative to a location of the semiconductor switch or a driven load. The downstream ends connect to the Gate terminal. First, second, third, and fourth buffer switches have Gate terminals and Source terminals, with the Source terminals connected to the upstream ends of the first, second, third, and fourth Gate resistors, respectively. An optional Gate driver integrated circuit (IC) connects to the Gate terminals of the buffer switches. A microcontroller, responsive to circuit measurements, selects switching control values and Gate resistor identities based on the measurements, and transmits switching control signals and a Gate resistor selection signal to select on/off states of the buffer switches and an optimum switching speed for the semiconductor switch.