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:
Jan. 16, 2018
Filed:
May. 19, 2015
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventor:
Jui-Chi Wu, Taichung, TW;
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3606 (2013.01); G01R 31/3648 (2013.01); G01R 31/3662 (2013.01); H02J 7/0021 (2013.01); H02J 7/0014 (2013.01); H02J 2007/004 (2013.01);
Abstract
A power management apparatus used in a system comprising multiple batteries includes an ADC measurement circuit and a processing circuit. The ADC measurement circuit is configured for measuring or detecting a plurality of voltage levels for each of the multiple batteries. The processing circuit is configured for calculating a DC current for each of the batteries according to an internal resistance of each of the batteries and the detected voltage levels, and for estimating an internal voltage level for each of the batteries according to the calculated DC current.