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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 10056784 B1

PDFFull Text
Date of Patent:
Aug. 21, 2018

Filed:

Oct. 01, 2013

Inductive power transfer control using energy injection

Applicant:

Auckland Uniservices Limited, Auckland, NZ;

Inventors:

David Mortimer Budgett, Pt Chevalier, NZ;

Aiguo Hu, Epsom, NZ;

Ho Yan (Alex) Leung, Ellerslie, NZ;

John Daniel McCormick, Oneroa, NZ;

Assignee:

Auckland UniServices Limited, Auckland, NZ;

Attorney:

Schwegman Lundberg & Woessner, P.A.

Primary Examiner:

Alexis Pacheco

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01); H02J 50/40 (2016.01); H02M 3/337 (2006.01); H02J 5/00 (2016.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02J 17/00 (2006.01); H02M 3/158 (2006.01); H02J 50/10 (2016.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H01F 38/14 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 17/00 (2013.01); H02J 50/10 (2016.02); H02J 50/40 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); H02M 3/158 (2013.01); H02M 3/3376 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01);
Abstract

The invention relates to inductive power transfer (IPT) systems, and has particular relevance to control of IPT systems, and to operation of IPT system primary power supplier. There is provided a method for controlling an IPT system primary power supply having a switched resonant circuit; the method comprising: determining the value of a parameter of the system; determining an energy injection switching pattern having a duration dependent on the parameter value; controlling the resonant circuit according to the determined energy injection switching pattern.

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