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. 06, 2019
Filed:
Sep. 03, 2014
Mitsubishi Heavy Industries Thermal Systems, Ltd., Minato-ku, Tokyo, JP;
Keiji Nagasaka, Tokyo, JP;
Hideo Nakamura, Tokyo, JP;
Koji Nakano, Tokyo, JP;
Masatoshi Morishita, Tokyo, JP;
Shunsuke Yakushiji, Tokyo, JP;
Abstract
A drive apparatus providing a heat source and driving a switching element, along with a corresponding method of using the drive apparatus. The switching element includes a transistor having a high-heat resistant semiconductor including silicon carbide. The drive apparatus is provided with a voltage adjusting unit that varies a drive voltage to be applied to a conduction control terminal of the switching element in order to put the switching element in an ON state, and the voltage adjusting unit applies, as the drive voltage, a voltage in an active region of the transistor to the conduction control terminal.