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:
Jul. 16, 2024
Filed:
Apr. 13, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Hong-Kyun Kim, Daejeon, KR;
Je-Chang Ryu, Daejeon, KR;
Jong-Kwang Shin, Daejeon, KR;
Ik-Jae Lee, Daejeon, KR;
Chang-Hun Sung, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
Provided are a voltage sensing circuit, including a first sub-sensing circuit including a light emitting device, and electrically connected in parallel to a battery, and a second sub-sensing circuit including a light receiving device optically coupled to the light emitting device, and electrically isolated from the first sub-sensing circuit. The light emitting device is for generating an optical signal in response to a voltage across the light emitting device. The second sub-sensing circuit is for outputting a voltage sensing signal indicating a level of voltage across the battery in response to the optical signal. When the voltage across the battery is equal to a first reference voltage indicating an overvoltage state of the battery, a second reference voltage which is lower than the first reference voltage is applied across the light emitting device. The second reference voltage is lower than a threshold voltage of the light emitting device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile