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.

Date of Patent:
Oct. 15, 2019

Filed:

Jul. 13, 2017
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02J 7/02 (2016.01); H02J 50/40 (2016.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H02J 7/025 (2013.01); H02J 50/40 (2016.02); H02J 50/80 (2016.02);
Abstract

A device that wirelessly transfers power to an external device is provided. The device for wirelessly transferring power to an external device includes a resonant circuit including an adaptive circuit including at least one variable capacitor and a first inductor inductively coupled to the external device and configured to transfer the power to the external device using inductive coupling, and a first direct current (DC) power supply configured to apply a DC voltage to the adaptive circuit based on a control signal, wherein capacitance of the at least one variable capacitor is adjusted based on the DC voltage applied to the adaptive circuit.


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