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. 03, 2022
Filed:
Sep. 13, 2018
Gs Yuasa International Ltd., Kyoto, JP;
Jun Ikemoto, Kyoto, JP;
Hayato Tawa, Kyoto, JP;
Kazuyuki Kawamoto, Kyoto, JP;
Daisuke Konishi, Kyoto, JP;
GS Yuasa International Ltd., Kyoto, JP;
Abstract
A power storage devicecomprises: a plurality of power storage elements C-Cthat are connected in series; energy transfer circuitsprovided respectively to the plurality of power storage elements C-C; a common busto which the energy transfer circuitsof the plurality of power storage elements C-Care commonly connected; and a control device. Each energy transfer circuitincludes one or a plurality of switching transformers Tr, each switching transformer having a first windingA that is connected to the power storage elements C-Cand a secondary windingB that is connected to the common bus. The control deviceuses the switching transformers Tr of the energy transfer circuitsto transfer energy between the power storage elements via the common bus, thereby equalizing the voltages of the power storage elements C-C. The common busis in an electrically floating state.