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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.:

US 10046659 B1

PDFFull Text
Date of Patent:
Aug. 14, 2018

Filed:

Sep. 23, 2015

Systems, apparatus and method for adaptive wireless power transfer

Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Roman Bucher, Wabern, CH;

Marcel Fischer, Boniswil, CH;

Hans Peter Widmer, Wohlenschwil, CH;

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:

Knobbe, Martens, Olson & Bear, LLP

Primary Examiner:

Jeffrey Shin

Int. Cl.
CPC ...
H02J 5/00 (2016.01); B60L 11/18 (2006.01); H02J 7/02 (2016.01); H02J 7/04 (2006.01); H02J 50/12 (2016.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02J 50/80 (2016.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
B60L 11/182 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 7/04 (2013.01); H02J 50/12 (2016.02); H02M 3/3376 (2013.01); H02M 3/33523 (2013.01); B60L 2210/30 (2013.01); H02J 50/80 (2016.02); H02M 2001/0048 (2013.01); H02M 2001/0058 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/92 (2013.01); Y02T 90/122 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract

An apparatus for wirelessly receiving power from a wireless power transmitter is provided. The apparatus comprises an active switching rectifier operably connected to a coupler and configured to operate in a first bridge mode and a second bridge mode. The apparatus comprises a controller configured to adjust an input resistance of the rectifier to a first value that provides a first wireless power transfer efficiency when the rectifier operates in the first bridge mode. The controller is configured to adjust the input resistance of the rectifier to a second value that provides a second wireless power transfer efficiency less than the first wireless power transfer efficiency while operating within one or more operating limitations when the rectifier operates in the second bridge mode.

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