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. 08, 2007
Filed:
Feb. 26, 2004
Applicants:
Seiji Miura, Atsugi, JP;
Yukihiro Terada, Atsugi, JP;
Akira Ikeuchi, Atsugi, JP;
Inventors:
Assignee:
Mitsumi Electric Co., Ltd., Tama-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery pack with a charge control function includes a charge protection circuit and a charge control circuit. The charge control circuit turns a discharge control switch on or off to control a discharge current which flows from a secondary battery to a load and also turns a charge control switch on or off to control a charge current which flows from a charger to the secondary battery. When an abnormal voltage is input, the charge control circuit turns the charge control switch on or off to stop the charging of the secondary battery through the charger.