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Patent Searching and Data


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 (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
KWON, Yong Il (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
CHA, Dae Young (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
Application Number:
KR2018/007893
Publication Date:
January 31, 2019
Filing Date:
July 12, 2018
Export Citation:
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Assignee:
LG INNOTEK CO., LTD. (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
International Classes:
H02J50/80; H02H5/04; H02H7/18; H02J7/00; H05K7/20
Foreign References:
US20160118808A12016-04-28
KR20170013142A2017-02-06
US20120223590A12012-09-06
US20110136550A12011-06-09
KR20170028823A2017-03-14
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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