Title:
WIRELESS CHARGING METHOD, AND APPARATUS AND SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/195977
Kind Code:
A2
Abstract:
The present invention relates to a wireless charging method, and an apparatus and a system therefor. A wireless charging method in a wireless power transmitter, according to an embodiment of the present invention, may comprise the steps of: controlling transmission power on the basis of a feedback signal periodically received from a wireless power receiver during power transmission; determining whether or not the wireless power receiver is present in a charging area during the power transmission; and maintaining the intensity of the transmission power constant if the result of the determination shows that the wireless power receiver is not present in the charging area. Therefore, the present invention is advantageous in that it is possible to prevent, in advance, the power transmission from being unnecessarily interrupted against a user's intention.
Inventors:
LEE JONG HEON (KR)
Application Number:
PCT/KR2017/002891
Publication Date:
November 16, 2017
Filing Date:
March 17, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02J7/02; H02J50/10; H02J50/12; H02J50/90
Other References:
See references of EP 3457517A4
Attorney, Agent or Firm:
PARK, Young Bok et al. (KR)
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