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Patent Searching and Data


Title:
WIRELESS POWER TRANSMISSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/078488
Kind Code:
A1
Abstract:
The present invention relates to a wireless power transmission apparatus. The wireless power transmission apparatus according to one embodiment of the present invention comprises: a transmission controller for generating and supplying a reference clock signal; an external clock generator for supplying an external clock signal for generating the reference clock signal to the transmission controller; a gate driver for generating a plurality of switching control signals on the basis of the reference clock signal; a converter for converting the level of an input DC voltage and supplying an output DC voltage; an inverter for controlling the output DC voltage by means of a plurality of switches provided in accordance with the plurality of switching control signals to generate an AC power signal; and a power transmitter for wirelessly transmitting the AC power signal, wherein the frequency of the reference clock signal may be any frequency of between 112.4 KHz and 112.75 KHz.

Inventors:
CHOI, Soon Chul (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
LEE, Yun Bok (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
Application Number:
KR2018/010601
Publication Date:
April 25, 2019
Filing Date:
September 11, 2018
Export Citation:
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Assignee:
LG INNOTEK CO., LTD. (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
International Classes:
H02J50/10; H02M7/5387
Foreign References:
KR20170048632A2017-05-10
KR20130126667A2013-11-20
JP2013212003A2013-10-10
KR20160034578A2016-03-30
KR20160035750A2016-04-01
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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