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:
Sep. 17, 2019

Filed:

Oct. 23, 2017
Applicant:

Wits Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Hyo Young Kim, Suwon-si, KR;

Seung Won Park, Suwon-si, KR;

Eun Young Shin, Suwon-si, KR;

Byoung Woo Ryu, Suwon-si, KR;

Dong Woo Han, Suwon-si, KR;

Ye Ji Park, Suwon-si, KR;

Young Seung Roh, Suwon-si, KR;

Assignee:

WITS Co., Ltd., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 50/12 (2016.01); H02M 7/539 (2006.01); H02M 1/14 (2006.01); H02M 1/36 (2007.01); H02M 3/155 (2006.01); H02M 7/48 (2007.01); H02J 50/80 (2016.01); H02J 7/02 (2016.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H02J 50/80 (2016.02); H02M 1/14 (2013.01); H02M 1/36 (2013.01); H02M 3/155 (2013.01); H02M 7/48 (2013.01); H02M 7/539 (2013.01); H02J 7/022 (2013.01); H02J 7/025 (2013.01); H02M 2001/007 (2013.01); H02M 2001/0032 (2013.01); H02M 2007/4815 (2013.01); Y02B 70/1441 (2013.01); Y02B 70/16 (2013.01);
Abstract

A wireless power transmitter includes: a converter including switching elements forming a bridge circuit and configured to output an alternating current (AC) voltage in response to control signals; a resonator including a resonant capacitor and a resonant coil, and configured to receive the AC voltage to transmit power wirelessly; and a controller configured to set a dead time at which a magnitude of the AC voltage is substantially zero in response to a signal received from a wireless power receiver.


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