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. 09, 2020
Filed:
Aug. 25, 2017
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Dukjung Kim, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A battery protective circuit including a resistor connected to a switch between a battery and a load through which a first current flows, a first driver to supply the first current to the switch and the resistor, a negative temperature coefficient element having resistance that varies in response to heat of the resistor, a second driver to supply a second current to the negative temperature coefficient element, a short-circuit device to be mechanically deformed by a current, a mechanical switch including a plurality of terminals connected with the battery, the terminals electrically connected with each other by deformation of the short-circuit device, a fuse connected in series between the battery and the mechanical switch, a circuit-changing switch configured to supply the second current to the short-circuit device or to block supply thereof, and a controller to control operations of the first driver, the second driver, and the circuit-changing switch.