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:
Jun. 21, 2022
Filed:
May. 30, 2018
Koki Holdings Co., Ltd., Tokyo, JP;
Yasushi Nakano, Ibaraki, JP;
Satoshi Yamaguchi, Ibaraki, JP;
Hiroyuki Hanawa, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Tomomasa Nishikawa, Ibaraki, JP;
Shota Kanno, Ibaraki, JP;
Toshio Mizoguchi, Ibaraki, JP;
Takuya Teranishi, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
A battery pack includes cell units in which upper and lower battery cells are connected in series, wherein an output of series-connection and an output of parallel-connection can be switched. The cell units are respectively provided with protection circuit ICs for monitoring the state of the battery cells, and only the protection circuit on the lower cell unit side is provided with a controllerincluding a microcomputer. To adjust the power consumption for the microcomputer only provided in the lower cell unit, the circuit on the upper cell unit side is provided with a current consumption control means including dummy loads. The current consumption control means is operated in conjunction with the start-up of the microcomputer in the controller so as to equalize power consumption on the upper cell unit side and the lower cell unit side.