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:
Aug. 29, 2023
Filed:
Sep. 20, 2019
Fdk Corporation, Tokyo, JP;
Takashi Kanou, Tokyo, JP;
Kenji Kitamura, Tokyo, JP;
Yasunari Mizoguchi, Tokyo, JP;
Takeshi Yoshida, Tokyo, JP;
Michiko Sato, Tokyo, JP;
FDK CORPORATION, Tokyo, JP;
Abstract
This chargeris provided with: a battery housing unitincluding a first contact Tand a second contact Twhich touch the respective electrode terminals of a battery BAT to be housed therein; a high-potential power supply lineand a low-potential power supply lineto which power for charging the battery BAT is supplied; a connection switching circuitcapable of switching between a first connection state in which the first contact Tis connected to the high-potential power supply lineand the second contact Tis connected to the low-potential power supply lineand a second connection state in which the second contact Tis connected to the high-potential power supply lineand the first contact Tis connected to the low-potential power supply line; and a control devicefor controlling the connection switching circuitto perform charging control on the battery BAT. The control deviceperforms preliminary charging on the battery BAT in the first connection state and, when a battery voltage VB does not exceed a set voltage VS, switches the connection state to the second connection state and performs preliminary and normal charging on the battery BAT.