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. 28, 2020
Filed:
May. 24, 2018
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;
Mitsuo Kondo, Iwata, JP;
Ryo Saito, Iwata, JP;
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata-Shi, Shizuoka, JP;
Abstract
Provided is a protection circuit of a lithium-ion secondary battery that, when reaching overdischarging, can suppress any more progress of the overdischarging with a versatile approach and at low costs. A protection circuit of a lithium-ion secondary battery includes: a controlling IC that is driven by electric power of the lithium-ion secondary battery, and configured to detect at least a voltage of the lithium-ion secondary battery; and an interrupting circuit including at least a fuse and a switch, the fuse being arranged between the lithium-ion secondary battery and the controlling IC, the switch being arranged so as to allow a current capable of blowing the fuse to flow from the lithium-ion secondary battery to the fuse when the switch is turned on.