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:
Oct. 08, 2024
Filed:
Aug. 11, 2015
Applicant:
Auckland Uniservices Limited, Auckland, NZ;
Inventors:
Udaya Kumara Madawala, Stonefields, NZ;
Duleepa Jayanath Thrimawithana, Mt Wellington, NZ;
Assignee:
AUCKLAND UNISERVICES LIMITED, Auckland, NZ;
Primary Examiner:
Int. Cl.
CPC ...
H02J 50/12 (2016.01); H01F 38/14 (2006.01); H02J 7/00 (2006.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02J 50/60 (2016.01); H02J 50/90 (2016.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H01F 38/14 (2013.01); H02J 7/00712 (2020.01); H02M 3/33523 (2013.01); H02M 3/33576 (2013.01); H02M 3/3372 (2013.01); H02J 50/60 (2016.02); H02J 50/90 (2016.02); Y02B 70/10 (2013.01);
Abstract
A wireless power transfer apparatus has a resonant circuit electrically coupled to a power converter. The resonant circuit includes a magnetic coupler Lfor magnetic coupling with a second apparatus. A controller associated with the power converter is configured to vary a relative phase of operation of the power converter with respect to the second apparatus, the phase being varied to at least partially compensate for variations in a resonant frequency of the resonant circuit.