Title:
INDUCTANCE MAPPING METHOD AND DEVICES FOR WIRELESS CHARGING
Document Type and Number:
WIPO Patent Application WO/2018/074805
Kind Code:
A3
Abstract:
The present invention relates to an inductance matching method for wireless charging, and devices therefor. The inductance matching method in a wireless power transmitter for transmitting wireless power, according to one embodiment of the present invention, may comprise the steps of: detecting an object disposed in a charging region; when the object is detected, measuring a quality factor value; on the basis of the measured quality factor value, estimating an inductance value of a wireless power receiver; determining whether inductance adjustment is necessary by comparing an inductance value of the wireless power transmitter with the inductance value of the wireless power receiver; and according to the results of determining, adjusting the inductance value of the wireless power transmitter. Thus, the present invention has a merit whereby charging efficiency may be maximized by dynamically adjusting an inductance value of oneself according to an inductance value of another object.
Inventors:
LEEM SUNG HYUN (KR)
Application Number:
PCT/KR2017/011441
Publication Date:
July 12, 2018
Filing Date:
October 17, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02J50/12; G01R27/26; H02J7/02; H02J50/90
Foreign References:
| KR20120019090A | 2012-03-06 | |||
| KR20130087708A | 2013-08-07 | |||
| KR20110137747A | 2011-12-23 | |||
| US20100045114A1 | 2010-02-25 | |||
| US20150280444A1 | 2015-10-01 |
Attorney, Agent or Firm:
LEE, Seung Chan (KR)
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