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:
Apr. 25, 2017
Filed:
Feb. 01, 2016
Panasonic Corporation, Osaka, JP;
Osamu Tabata, Osaka, JP;
Shuichi Nagai, Osaka, JP;
PANASONIC CORPORATION, Osaka, JP;
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.