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:
Dec. 11, 2018
Filed:
Jul. 30, 2015
Applicant:
Funai Electric Co., Ltd., Daito-shi, Osaka, JP;
Inventor:
Hideki Tanabe, Hirakata, JP;
Assignee:
Funai Electric Co., Ltd., Daito-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 5/00 (2016.01); H04B 5/00 (2006.01); H02J 50/12 (2016.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 5/00 (2013.01); H02J 50/12 (2016.02); H02M 3/3353 (2013.01); H02M 3/3378 (2013.01); H04B 5/0037 (2013.01); H04B 5/0081 (2013.01); H04B 5/0093 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01);
Abstract
A wireless power supply device includes a resonance circuit including a coil and a capacitor, a power supply portion that supplies AC power to the resonance circuit based on a drive signal having a prescribed drive frequency, and a controller that substantially matches the phase of the drive signal and the phase of oscillation of the resonance circuit by switching the direction of a current that flows into the coil.