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:
Aug. 09, 2011
Filed:
Jan. 19, 2007
Katsumi Ishikawa, Hitachinaka, JP;
Hideki Miyazaki, Hitachi, JP;
Masahiro Nagasu, Hitachinaka, JP;
Yasuhiko Kono, Naka, JP;
Katsumi Ishikawa, Hitachinaka, JP;
Hideki Miyazaki, Hitachi, JP;
Masahiro Nagasu, Hitachinaka, JP;
Yasuhiko Kono, Naka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gate driving circuit for a voltage-driven power semiconductor switching device has (a) the voltage-driven power semiconductor switching device, (b) a driving circuit for supplying a drive signal to the gate electrode of the switching device, and (c) an inductance between the emitter control terminal or source control terminal of the switching device and the emitter main terminal or source main terminal of a semiconductor module. A voltage produced across the inductance is detected. The gate-driving voltage or gate drive resistance is made variable based on the detected value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile