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:
May. 12, 2015
Filed:
Dec. 16, 2010
Hiroyuki Imanishi, Toyota, JP;
Kota Manabe, Toyota, JP;
Nobuyuki Kitamura, Minamitsuru-gun, JP;
Takahiko Hasegawa, Toyota, JP;
Atsuo Kawamura, Yokohama, JP;
Yukinori Tsuruta, Yokohama, JP;
Hiroyuki Imanishi, Toyota, JP;
Kota Manabe, Toyota, JP;
Nobuyuki Kitamura, Minamitsuru-gun, JP;
Takahiko Hasegawa, Toyota, JP;
Atsuo Kawamura, Yokohama, JP;
Yukinori Tsuruta, Yokohama, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
National University Corporation Yokohama National University, Yokohama, JP;
Abstract
A voltage boost converter includes: a main voltage boost portion that has a first switch and a first coil, and that raises output voltage of a direct-current power source by using counter electromotive force of the coil caused by the switch performing a switching action on the coil; and a subsidiary voltage boost portion which has a capacitor that adjusts potential difference between two poles of the switch by amount of electricity stored, and which reduces switching loss of the switch by adjusting the amount of electricity in the capacitor during the switching action, and which has a second switch and a second coil. The second coil is formed by winding a wire around at least a portion of a core formed of a magnetic body. The core is provided with a gap formed of a non-magnetic body. A core region formed of a magnetic body is adjacent to the gap.