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:
Dec. 12, 2023
Filed:
Jun. 11, 2021
Motorola Solutions, Inc., Chicago, IL (US);
Muhamad Ridzuan Azizan, Baling, MY;
Kow Chee Chong, Bayan Lepas, MY;
Md Reduan Md Saad, Bukit Mertajam, MY;
Chen Kok Yeoh, Bukit Mertajam, MY;
Macwien Krishnamurthi, Shah Alam, MY;
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Abstract
A battery, method and battery operated portable communication device are provided with protection from excessive current and thermal conditions. A plurality of protection circuits are coupled in series within a common charge/discharge path of the battery. The first protection circuit is configured to block current by opening a switch in response to a voltage drop across the switch and a current sense resistor in the common charge/discharge path. The second protection circuit provides redundancy under conditions where the first switch might fail, where the second switch will block current through the current sense resistor.