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.:

US 9634655 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 25, 2017

Filed:

Feb. 01, 2016
Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Osamu Tabata, Osaka, JP;

Shuichi Nagai, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 17/041 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H03K 17/04106 (2013.01); H03K 17/6871 (2013.01);
Abstract

A drive device that drives a semiconductor switching device includes a capacitor and an output selection unit that selects whether or not to supply charge of the capacitor to a conduction control terminal of the semiconductor switching device, in which the output selection unit includes a first switching device and a second switching device, the charge of the capacitor is supplied to the conduction control terminal of the semiconductor switching device by the first switching device going to a conducting state, the charge is extracted from the conduction control terminal of the semiconductor switching device by the second switching device going to the conducting state, and a gate width of the second switching device is smaller than the gate width of the first switching device.


Find Patent Forward Citations

Tabata, Osamu. (2017). Drive device having first and second switching devices with different gate widths (U.S. Patent No. 9634655). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9634655

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