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:
Oct. 28, 2014
Filed:
Dec. 29, 2010
Koichi Mukai, Osaki, JP;
Masahiko Ishimaru, Osaki, JP;
Takahiro Asada, Osaki, JP;
Chisato Komori, Osaki, JP;
Yoshihiro Yoneda, Osaki, JP;
Yuuji Kimura, Osaki, JP;
Shoko Nagaki, Osaki, JP;
Koichi Mukai, Osaki, JP;
Masahiko Ishimaru, Osaki, JP;
Takahiro Asada, Osaki, JP;
Chisato Komori, Osaki, JP;
Yoshihiro Yoneda, Osaki, JP;
Yuuji Kimura, Osaki, JP;
Shoko Nagaki, Osaki, JP;
Dexerials Corporation, Tokyo, JP;
Abstract
A protective circuit capable of coping with broad voltage variations of a battery unit to interrupt its charging/discharging current path as damages to the heating unit are prevented from occurrence is disclosed. The protective circuit includes fuses, connected to a charging/discharging current path in series between a battery unit and a charging/discharging control circuit, and a heating unit composed by a series connection of resistors. One of two ends of the resistor which is not connected to the peer resistor is connected to a current path of the fuses. The ends of the resistors not connected to the fuses, are provided with a plurality of terminals selected for connection to a current control element that controls the current flowing through the heating unit, as a range of voltage variations of the battery unit is taken into account.