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:
Aug. 03, 2004
Filed:
Nov. 26, 2002
Applicant:
Inventors:
Osamu Kawagoe, Atsugi, JP;
Yukihiro Terada, Atsugi, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tama, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/046 ;
U.S. Cl.
CPC ...
H01M 1/046 ;
Abstract
In a secondary battery protection circuit ( ) for protecting a secondary battery ( ) by controlling, by turning a discharge control switch (FET ) on and off, a discharging current (l) flowing from the secondary battery ( ) through a load ( ) connected between a pair of external connection terminals ( ), a clamping circuit ( ) clamps a control terminal (G ) of the discharge control switch (FET ) into a ground potential when the external connection terminals ( ) are short-circuited.