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:
Jul. 14, 2020

Filed:

Dec. 22, 2015
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Essam Elkhouly, Santa Clara, CA (US);

Songnan Yang, San Jose, CA (US);

Zhen Yao, San Jose, CA (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/02 (2016.01); H02J 7/04 (2006.01); H02J 50/12 (2016.01); H01F 38/14 (2006.01); H02J 50/70 (2016.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/70 (2016.02);
Abstract

In a wireless charging device that includes a resonator having coil windings, a magnetic field can be generated by the resonator. The wireless charging device can include a feed point connected to an inner winding of the coil windings of the resonator. The resonator can inductively couple with a power receiving unit such that the an outer winding of the coil windings limit Eddy current generation in one or more conductive surfaces positioned adjacent to the power receiving unit. The feed point can be selectively connected to the inner winding of the coil in a first mode of operation and the outer winding of the coil in a second mode of operation. The inner winding can have a larger current than the outer winding.


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