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. 10, 2018
Filed:
Apr. 09, 2014
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/42 (2006.01); H01F 37/00 (2006.01); H01F 38/00 (2006.01); H03H 7/38 (2006.01); H01F 38/14 (2006.01); H02J 5/00 (2016.01); H02J 50/12 (2016.01);
U.S. Cl.
CPC ...
H03H 7/38 (2013.01); H01F 38/14 (2013.01); H02J 5/005 (2013.01); H02J 50/12 (2016.02);
Abstract
A power transmitter apparatus of a wireless power transmitter apparatus transmits electric power from the power transmitter apparatus to a power reception apparatus by electromagnetically coupling a power transmitter apparatus resonance coil with a power reception apparatus resonance coil. The power transmitter apparatus includes a control signal detector portion that generates a control signal based on a voltage change of a voltage across both terminals of the power transmitter apparatus resonance coil and transmits the control signal; and a switching circuit that resonates the power transmitter apparatus resonance coil on the basis of the control signal.