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. 28, 2019
Filed:
May. 31, 2017
Fuji Electric Co., Ltd., Kawasaki, JP;
Hiroyuki Nakajima, Matsumoto, JP;
Takanori Kohama, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A semiconductor device includes an element drive unit configured to control a control terminal of a voltage-control type semiconductor element using the control signal as input, the element drive unit including a control circuit that is driven using the control signal as a power supply. The element drive unit includes: a first voltage divider circuit that is connected between an input terminal to which the control signal is input and a low potential side terminal connected to a low potential side terminal of the voltage-control type semiconductor element and is configured such that a first divided voltage is not greater than a set voltage; a semiconductor switching element configured to control the first voltage divider circuit; and a second voltage divider circuit for making the semiconductor switching element conductive. The first divided voltage is supplied to the control terminal of the voltage-control type semiconductor element and the control circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile