Title:
WIRELESS CHARGING DEVICE, METHOD AND SYSTEM FOR NEGOTIATING POWER CLASS BY USING SHORT RANGE WIRELESS COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2020/222415
Kind Code:
A1
Abstract:
The present specification relates to: a wireless power receiving device, which can receive information about a power class on the basis of out-band communications at a short distance before the wireless power receiving device is positioned at the charging position of a wireless power transmitting device, and negotiate power class; the wireless power transmitting device; a wireless power transmitting method; a wireless power receiving method; and a wireless power transmitting system. According to the present specification, whether power of the wireless power transmitting device (or a charger) is suitable for the wireless power receiving device (or a device to be charged) is quickly identified remotely or at a short distance prior to a wireless power transmission (or wireless charging), appropriate charging power is set through negotiation, and then wireless charging can be safely performed.
Inventors:
LEE MINSOO (KR)
LIM JINKWON (KR)
CHOI JINGU (KR)
LIM JINKWON (KR)
CHOI JINGU (KR)
Application Number:
PCT/KR2020/003092
Publication Date:
November 05, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02J50/80
Domestic Patent References:
| WO2013151831A1 | 2013-10-10 |
Foreign References:
| KR101743071B1 | 2017-06-02 | |||
| KR20180005853A | 2018-01-17 | |||
| KR20190015953A | 2019-02-15 | |||
| KR20160025261A | 2016-03-08 |
Other References:
See also references of EP 3965262A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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