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Patent Searching and Data


Title:
WIRELESS POWER TRANSMISSION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/172535
Kind Code:
A1
Abstract:
The present invention relates to a wireless power transmission method and apparatus. The wireless power transmission apparatus according to one embodiment of the present invention comprises: an AC power generator for converting DC power to AC power on the basis of a reference signal; a transmission coil coupled to an output end of the AC power generator; a demodulator coupled to the transmission coil; and a controller for providing the reference signal to the AC power generator, wherein the controller may receive first information via the demodulator, control a frequency of the reference signal according to an operating frequency control scheme which is identified on the basis of the first information, and control a charging mode on the basis of a second information received via the demodulator. Therefore, the present invention has an advantage of being capable of providing an optimal charging environment for each receiver.

Inventors:
CHAE, Yong Suk (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
KIM, Ji Won (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
LEE, Jong Heon (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
Application Number:
KR2019/001496
Publication Date:
September 12, 2019
Filing Date:
February 07, 2019
Export Citation:
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Assignee:
LG INNOTEK CO., LTD. (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
International Classes:
H02J50/80; H02J7/02; H02J50/20
Foreign References:
KR101153179B12012-06-18
KR20120134031A2012-12-11
JP2009268311A2009-11-12
KR20160025261A2016-03-08
KR20170044495A2017-04-25
Attorney, Agent or Firm:
LEE, Seung Chan (KPH & Associates, 3rd Floor Nara Bldg., 19, Seochojungang-ro 24-gil,,Seocho-gu, Seoul, 06604, KR)
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