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. 25, 2003
Filed:
Sep. 25, 2000
Applicant:
Inventors:
Ryoso Masaki, Hitachi, JP;
Masahiko Amano, Hitachiota, JP;
Mutsuhiro Mori, Mito, JP;
Hideki Miyazaki, Hitachi, JP;
Kazuo Tahara, Hitachi, JP;
Keiichi Mashino, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 1/00 ;
U.S. Cl.
CPC ...
B60L 1/00 ;
Abstract
A power source apparatus includes a first switching element for controlling the power feed in the direction from a high-voltage battery to an inverter, and a second switching element for the power feed in the direction from the inverter to a low-voltage battery, and the voltage at the direct current side is controlled to be higher than that of the high-voltage battery when a battery controller for controlling the first and second switching elements breaks down.