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:
Oct. 01, 2013
Filed:
Jul. 29, 2010
Kimihisa Furukawa, Hitachi, JP;
Hideki Miyazaki, Hitachi, JP;
Shigeyuki Yoshihara, Hitachinaka, JP;
Yuichiro Takamune, Naka, JP;
Kimihisa Furukawa, Hitachi, JP;
Hideki Miyazaki, Hitachi, JP;
Shigeyuki Yoshihara, Hitachinaka, JP;
Yuichiro Takamune, Naka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A power conversion device comprises a power conversion unit of a three phase full bridge type including upper arm switching devices and lower arm switching devices, and a controller that outputs drive signals to these switching devices. This power conversion device forms alternately a first interval in which the upper arm switching devices and the lower arm switching devices are switched to ON for different phases, and a second interval in which, for all phases, either the upper arm switching devices or the lower arm switching devices are switched to ON, according to electrical angle.