Title:
METHOD FOR PREVENTING OVERHEATING OF WIRELESS POWER RECEIVER AND WIRELESS POWER TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2019/022413
Kind Code:
A1
Abstract:
A method for preventing overheating of a transmitter for transmitting wireless power to a receiver according to one embodiment of the present invention may comprise the steps of: measuring a temperature of the transmitter; receiving, from the receiver, a renegotiation packet which requests entry into a renegotiation phase; receiving, from the receiver, a general request packet which requests a power transmitter capability packet; controlling a guaranteed power value on the basis of the measured temperature and a critical temperature; transmitting, to the receiver, the power transmitter capability packet including the guaranteed power value; receiving, from the receiver, a special request packet for required power determined on the basis of the guaranteed power value; and transmitting, to the receiver, a response signal to the special request packet, wherein the renegotiation packet includes a flag bit, and the critical temperature has a changed value when the flag bit indicates an overheating state of the receiver.
Inventors:
PARK JAE HEE (KR)
KWON YONG IL (KR)
CHA DAE YOUNG (KR)
KWON YONG IL (KR)
CHA DAE YOUNG (KR)
Application Number:
PCT/KR2018/007893
Publication Date:
January 31, 2019
Filing Date:
July 12, 2018
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02J50/80; H02H5/04; H02H7/18; H02J7/00; H05K7/20
Foreign References:
| US20160118808A1 | 2016-04-28 | |||
| KR20170013142A | 2017-02-06 | |||
| US20120223590A1 | 2012-09-06 | |||
| US20110136550A1 | 2011-06-09 | |||
| KR20170028823A | 2017-03-14 |
Attorney, Agent or Firm:
LEE, Seung Chan (KR)
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