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:
Nov. 26, 2019

Filed:

Apr. 01, 2016
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 50/12 (2016.01); H02J 50/60 (2016.01); H02J 50/40 (2016.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H02J 50/12 (2016.02); H02J 50/40 (2016.02); H02J 50/60 (2016.02);
Abstract

Techniques for modifying the electrical current distribution of transmit coil of a wireless power transmitting unit are described. An example power transmitting unit includes a transmit coil configured to generate a magnetic field to wirelessly power a device within an active wireless charging area. The power transmitting unit can also include a power source to transmit an alternating electrical current to an input terminal of the transmit coil and a plurality of reactive elements placed in series with the transmit coil. In some examples, the plurality of reactive elements attach to the transmit coil at least a quarter of a turn from the input terminal. The power transmitting unit can also include a controller to modify a reactance value of the reactive elements to adjust a current distribution of the transmit coil in response to detecting a characteristic of a power receiving unit.


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