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:
Feb. 04, 2014
Filed:
Jul. 18, 2008
Applicant:
Takashi Hamatani, Nishikamo-gun, JP;
Inventor:
Takashi Hamatani, Nishikamo-gun, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H02M 3/156 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switching frequency setting unit sets switching frequency of a switching element, based on both the temperature of a cooling medium which cools a DC-DC converter and the temperature of a switching element of the DC-DC converter. A switching controller controls the voltage conversion ratio of the DC-DC converter by controlling switching operation of the switching element at the set switching frequency.