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. 09, 2017
Filed:
Feb. 25, 2014
Applicant:
Seiko Instruments Inc., Chiba-shi, Chiba, JP;
Inventors:
Atsushi Sakurai, Chiba, JP;
Fumihiko Maetani, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0029 (2013.01); H02J 7/0031 (2013.01); H02J 7/007 (2013.01); H02J 7/0011 (2013.01); H02J 7/0072 (2013.01); H02J 2007/0039 (2013.01);
Abstract
Provided is a highly safe battery device in which the accuracy of an overcurrent detection current value is high. A charge and discharge control circuit includes an overcurrent detecting terminal, an overcurrent detecting circuit for detecting overcurrent of a secondary battery, the overcurrent detecting circuit being connected to the overcurrent detecting terminal, and a constant current circuit for causing a current to flow to the overcurrent detecting terminal.