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:
Feb. 02, 2011
Masao Yamaguchi, Sumoto, JP;
Mikitaka Tamai, Sumoto, JP;
Osamu Kaite, Awaji, JP;
Shinichi Itagaki, Sumoto, JP;
Masayuki Kobayashi, Minamiawaji, JP;
Hiroyoshi Yamamoto, Sumoto, JP;
Masao Yamaguchi, Sumoto, JP;
Mikitaka Tamai, Sumoto, JP;
Osamu Kaite, Awaji, JP;
Shinichi Itagaki, Sumoto, JP;
Masayuki Kobayashi, Minamiawaji, JP;
Hiroyoshi Yamamoto, Sumoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A power source apparatus includes first equalizing circuits to control remaining charge capacity variation among a plurality of battery units, and second equalizing circuits to control remaining charge capacity variation among all the series-connected battery packs that make up each battery unit. A first equalizing circuit connects each battery unit with an output line OL through a first series circuit made up of a first limiting resistor and first equalizing switch. Remaining charge capacity variation is equalized among all the battery units by the first equalizing circuits, and remaining charge capacity variation between battery packs in each battery unit is controlled by the second equalizing circuits.