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.

Date of Patent:
Jun. 20, 2017

Filed:

Dec. 03, 2014
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventor:

Chi-Min Lee, Hsinchu County, TW;

Assignee:

MediaTek Inc., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 5/00 (2016.01); H02J 7/04 (2006.01); H02J 7/08 (2006.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H02J 5/005 (2013.01); H02J 7/04 (2013.01); H02J 7/045 (2013.01); H02J 7/085 (2013.01);
Abstract

A method for performing wireless charging control and an associated apparatus are provided, where the method may include: performing current detection and voltage detection to monitor a driving current and a driving voltage within the wireless charging transmitter, respectively, wherein the driving current and the driving voltage are utilized for driving a power output coil of the wireless charging transmitter; generating a set of indexes at least according to the driving current and the driving voltage, wherein the set of indexes may include a power loss index indicating power loss of a wireless charging operation performed by the wireless charging transmitter, and may further include an admittance-related index corresponding to any of a ratio of the driving current to the driving voltage or a reciprocal of the ratio of the driving current to the driving voltage; and performing wireless charging foreign object detection (FOD) according to the set of indexes.


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