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:
Nov. 19, 2024
Filed:
Aug. 25, 2020
Mitsubishi Electric Corporation, Tokyo, JP;
Takeshi Horiguchi, Tokyo, JP;
Yasushige Mukunoki, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A short-circuit detector detects an arm short circuit or a load short circuit, based on the magnitude of the gate current and the magnitude of the gate charge amount. The short-circuit detector includes: a gate current determinator that compares the magnitude of the gate current with at least one reference value; a gate charge amount determinator that compares the magnitude of the gate charge amount with at least one reference value; and a short-circuit detection logical operation circuitry that executes a logical operation of an output signal of the gate current determinator and an output signal of the gate charge amount determinator.