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:
Feb. 25, 2020
Filed:
Feb. 27, 2017
Fuji Electric Co., Ltd., Kanagawa, JP;
Akira Nakamori, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
Provided is a driving circuit for driving a switching element in accordance with an input signal. The driving circuit includes a driving unit connected to a control terminal of the switching element, where the driving unit is configured to switch, in accordance with the input signal, which one of a source current and a sink current is to be fed to the control terminal of the switching element, a first limiter configured to operate with a predetermined time constant and to limit a control voltage at the control terminal of the switching element to a first reference voltage when overcurrent is detected for a collector current of the switching element, and a second limiter configured to, when the overcurrent is detected, start lowering the control voltage earlier than an operation start timing of the first limiter that is determined by the time constant.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile