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. 27, 2004
Filed:
Dec. 17, 2002
Applicant:
Inventors:
Russell M. Rosenquist, Plano, TX (US);
David D. Baker, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/044 ; H01M 1/046 ;
U.S. Cl.
CPC ...
H01M 1/044 ; H01M 1/046 ;
Abstract
A method to more accurately monitor remaining battery life under varying load conditions. The measured battery voltage is adjusted for the current load and then used to determine the remaining battery life according to the battery voltage discharge curve for the battery type and chemistry. Advantageously, in an embodiment the present invention the remaining battery life can be determined despite fluctuations in the current due to a changing load and without monitoring current flow so that the determination of battery life is independent of the battery charging process.