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. 31, 2019
Filed:
May. 31, 2019
Fuji Electric Co., Ltd., Kawasaki-shi, Kanagawa, JP;
Ichiro Nomura, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, Kanagawa, JP;
Abstract
A gate drive apparatus including a switching time measurement unit that calculates a first or second delay time that is between a time at which a rising edge or a falling edge of a gate voltage is applied to the gate terminal of a switching element and a time at which the switching element is turned on or off. The gate drive apparatus further includes first and second time difference calculation units that respectively calculate first and second time differences, first and second pulse generation units that respectively generate first and second pulses having pulse widths that respectively match the first and second time differences, and first and second auxiliary switches that are configured to, upon receiving a first pulse or a second pulse, supply a source current to the gate terminal that corresponds to the first pulse, or absorb a sink current from the gate terminal that corresponds to the second pulse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile