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:
Nov. 07, 2017
Filed:
Jun. 29, 2015
Applicant:
Seiko Instruments Inc., Chiba-shi, Chiba, JP;
Inventors:
Toshiyuki Koike, Chiba, JP;
Kazuaki Sano, Chiba, JP;
Atsushi Sakurai, Chiba, JP;
Hiroshi Mukainakano, Chiba, JP;
Assignee:
SII SEMICONDUCTOR CORPORATION, Chiba, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/04 (2006.01); G01N 27/416 (2006.01); H01M 10/48 (2006.01); G01R 31/36 (2006.01); H01M 10/44 (2006.01);
U.S. Cl.
CPC ...
H01M 10/48 (2013.01); G01R 31/3606 (2013.01); G01R 31/3662 (2013.01); H01M 10/44 (2013.01);
Abstract
Provided is a battery state monitoring circuit and a battery device capable of predicting a state of charge of a secondary battery with high accuracy. The battery state monitoring circuit includes a pseudo-equivalent circuit of the secondary battery, and causes a current flowing through a sense resistor to flow to the pseudo-equivalent circuit of the secondary battery, to thereby measure a pseudo-open circuit voltage of the secondary battery.