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. 14, 2017
Filed:
Sep. 20, 2013
Ayuki Koishi, Kani, JP;
Yosuke Osanai, Toyota, JP;
Ayuki Koishi, Kani, JP;
Yosuke Osanai, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A semiconductor drive apparatus includes a first control unit configured, when an overcurrent is detected flowing between a first main electrode and a second main electrode of a switching element, to make a gate of the switching element conductive with a predetermined reference potential, to make a control voltage applied between the gate and the first main electrode lower, and to turn off the switching element; a detection unit configured to detect a current generated accompanying charge or discharge of a feedback capacitance between the gate and the second main electrode; and a second control unit configured, when the overcurrent and the current generated accompanying the charge or discharge of the feedback capacitance are detected, to make a resistance between the gate and the reference potential lower.