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:
Nov. 19, 2013
Filed:
Mar. 01, 2012
Fan Wang, Nagoya, JP;
Tomonori Kimura, Obu, JP;
Atsushi Kobayashi, Kariya, JP;
Hideaki Ishihara, Okazaki, JP;
Masakiyo Horie, Gamagori, JP;
Fan Wang, Nagoya, JP;
Tomonori Kimura, Obu, JP;
Atsushi Kobayashi, Kariya, JP;
Hideaki Ishihara, Okazaki, JP;
Masakiyo Horie, Gamagori, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A power conversion apparatus includes main circuits, in which switching elements are connected in parallel with diodes, respectively. An auxiliary circuit, which is formed of a series-connected second switching element and a capacitor, is connected in parallel with the diode operating as a freewheeling diode. The switching element of the main circuit, which is opposite to the auxiliary circuit, is set to turn on at a reference time. The second switching element of the auxiliary circuit is set to turn on in advance of the reference time by an interval of a discharging time period of the capacitor in a dead time period.