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. 18, 2017
Filed:
Mar. 27, 2015
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Edward Kenneth Kallal, San Diego, CA (US);
William Henry Von Novak, III, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 5/00 (2016.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02J 50/10 (2016.01);
U.S. Cl.
CPC ...
H02J 5/005 (2013.01); H01F 38/14 (2013.01); H02J 7/025 (2013.01); H02J 50/10 (2016.02);
Abstract
In a wireless charging system, a receiver device includes a second coil that performs a reactance shift. The reactance shift may be used to conform the device reactance to a reactance range, or to adjust a rectified voltage of the wireless power provided to the device electronics. The reactance shift differs from resonance matching in that the power transfer efficiency may be decreased.