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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 10008888 B1

PDFFull Text
Date of Patent:
Jun. 26, 2018

Filed:

Jul. 18, 2014

Wireless power transmission system calculating the battery charge state of the receiver based on the supply impedance of the power source and the summed impedance of the wireless transmitter, wireless receiver, medium therebetween, and battery charge circuit

Applicant:

Electronics and Telecommunications Research Institute, Daejeon, KR;

Inventors:

WooSub Youm, Daejeon, KR;

Sung Q Lee, Daejeon, KR;

Gunn Hwang, Daejeon, KR;

Assignee:

ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;

Attorney:
Primary Examiner:

Robert Grant

Assistant Examiner:

John Trischler

Int. Cl.
CPC ...
H02J 7/02 (2016.01); H02J 7/00 (2006.01); H02J 50/80 (2016.01); H02J 7/04 (2006.01); H02J 17/00 (2006.01); H02J 50/10 (2016.01); H02J 50/12 (2016.01); H02J 50/15 (2016.01);
U.S. Cl.
CPC ...
H02J 50/80 (2016.02); H02J 7/025 (2013.01); H02J 7/042 (2013.01); H02J 17/00 (2013.01); H02J 50/10 (2016.02); H02J 50/12 (2016.02); H02J 50/15 (2016.02); H02J 2007/0037 (2013.01);
Abstract

Provided is a wireless power transmission system. The wireless power transmission system includes a power supply unit generating amplified power; a wireless power transmission unit receiving and converting the amplified power into wireless power; a wireless power reception unit receiving and converting the wireless power into charging power; and a charging unit receiving the charging power, wherein the charging unit includes a battery to store the charging power and the power supply unit includes a power detection unit identifies the charged state of the battery based on the amplified voltage and amplified current of the amplified power.

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