Title:
FEEDBACK SIGNAL PROCESSING DEVICE FOR WIRELESS CHARGING TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2019/132223
Kind Code:
A1
Abstract:
The present invention provides a wireless power transmitter comprising: at least one coil for transmitting a wireless power signal; a demodulation unit for receiving a feedback signal transferred through in-band communication from a wireless charging receiver which receives a wireless power signal, and converting the received feedback signal into a digital demodulated signal; a signal processing unit for removing noise of a digital demodulated signal, adjusting an interval of the digital demodulated signal, and outputting a reconstructed signal; and a control unit for receiving a reconstructed signal to recognize a state of the wireless charging receiver, and controlling a wireless power signal.
Inventors:
YONG DONG HO (KR)
SONG IL JONG (KR)
SONG IL JONG (KR)
Application Number:
PCT/KR2018/013362
Publication Date:
July 04, 2019
Filing Date:
November 06, 2018
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02J50/80; H02J5/00; H02J7/02
Foreign References:
| KR20170065236A | 2017-06-13 | |||
| KR20140004870A | 2014-01-14 | |||
| US20160118836A1 | 2016-04-28 | |||
| KR20130078264A | 2013-07-10 | |||
| KR20170126318A | 2017-11-17 |
Attorney, Agent or Firm:
LEE, Seung Chan (KR)
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