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:
Dec. 22, 2015
Filed:
Feb. 08, 2013
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Takayoshi Yamamoto, Mito, JP;
Masaya Ichinose, Hitachiota, JP;
Akira Bando, Hitachi, JP;
Keiichi Yamashita, Hitachi, JP;
Shigenori Inoue, Hitachi, JP;
Toru Yoshihara, Hitachinaka, JP;
Yoshio Eguchi, Hitachi, JP;
Osamu Sakuchi, Hitachi, JP;
Shuji Katoh, Hitachiota, JP;
Tomomichi Ito, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A switching element of a power converter generates a low voltage, using a current flowing in the power converter, and supplies a power to drive itself. A switching element of a power converter for conversion from direct current into alternate current or from alternate current into direct current includes: a terminal and a terminal which are used in building the switching element itself in the power converter; a capacitor, a high-side controllable switch and a low-side controllable switch enabling outputting the voltage of the capacitor, the voltage being output between the terminal and the terminal, and a self-supply power source for supplying a power to drive the bi-directional chopper switching element itself, using a current flowing in the capacitor.