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:
Apr. 07, 2015
Filed:
Aug. 10, 2012
Atsushi Sakurai, Chiba, JP;
Hiroshi Saito, Chiba, JP;
Atsushi Sakurai, Chiba, JP;
Hiroshi Saito, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
Provided are a cell balance device for protecting a switch circuit from an overcurrent flow. The cell balance device includes: a plurality of electric accumulator connection terminals each connected to one of a node and two terminals of electric accumulators connected in series; a voltage hold device connection terminal connected to a voltage hold device; a plurality of first switch circuits provided between the plurality of electric accumulator connection terminals and the voltage hold device; a control circuit for controlling ON/OFF of the plurality of first switch circuits based on a synchronization signal; and an overcurrent detection circuit for detecting an overcurrent flowing through each of the plurality of first switch circuits.