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:
Feb. 21, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Naoki Sakurai, Hitachinaka, JP;
Masahiro Doi, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A gate drive circuit is connected to a semiconductor element having a gate terminal via a gate resistor and changes a gate voltage applied to the gate terminal to drive the semiconductor element, and when a condition that a current flowing through the semiconductor element is equal to or greater than a predetermined first threshold value and equal to or less than a predetermined second threshold value greater than the first threshold value and a temperature of the semiconductor element is equal to or greater than a predetermined third threshold value and equal to or less than a predetermined fourth threshold value greater than the third threshold value is satisfied, a resistance value of the gate resistor when the semiconductor element is turned on is switched to a value greater than that when the condition is not satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile