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. 26, 2026
Filed:
Mar. 15, 2024
The Hong Kong University of Science and Technology, Hong Kong, CN;
The Hong Kong University of Science and Technology, Hong Kong, CN;
Abstract
A gate clamping circuit for driving a wide bandgap (WBG) device is provided. The gate clamping circuit comprises: a semiconductor switching device having a high side terminal connected to a gate of the WBG device; and a low side terminal connected to a source of the WBG device; a clamping resistor having a first end connected to a negative power supply terminal of a driver chip; and a second end connected to a control terminal of the semiconductor switching device; and a clamping capacitor having a first end connected to the second end of the clamping resistor; and a second end connected to the low side terminal of the semiconductor switching device; wherein the gate clamping circuit is configured to clamp negative voltage spike generated at the gate of the WBG device to suppress overstress of the gate of the WBG device when a negative off-state gate voltage is applied.