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. 11, 2003
Filed:
Jan. 24, 2002
Applicant:
Inventors:
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/046 ;
U.S. Cl.
CPC ...
H01M 1/046 ;
Abstract
A secondary battery protection circuit detects at least one of an over-discharge state, an over-charge state, and an over-current state of a secondary battery and performs an operation in accordance with the detected state. The secondary battery protection circuit comprises a blind time setting circuit constituted by an IC for setting a blind time in accordance with the detected state. The blind time setting circuit has a switching circuit for setting a blind time for a functional test that is shorter than a preset blind time.