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:
Oct. 11, 2022
Filed:
Oct. 27, 2021
Fuji Electric Co., Ltd., Kawasaki, JP;
Masashi Akahane, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
A drive circuit includes: a control section generating a control signal; a first level shift section raising a level of a signal from the control section; a high side drive section controlling a semiconductor device; and a second level shift section lowering a level of a signal from the high side drive section for input to the control section. The high side drive section has an error detection section maintaining an output of an error detection signal when the semiconductor device is in an error status until a release signal is input, the control section has an error handling section outputting the release signal to the high side drive section via the first level shift section when the error detection signal is input via the second level shift section, and the error detection section stops the output of the error detection signal when the release signal is input.