WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND METHOD FOR CONTROLLING SAME

Title:

WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND METHOD FOR CONTROLLING SAME

Document Type and Number:

WIPO Patent Application WO/2014/010951

Kind Code:

A1

Abstract:

Disclosed is a method for controlling a wireless power transmitter for transmitting charging power to a wireless power receiver. The control method of the present invention comprises the steps of: adjusting the internal impedance of the wireless power transmitter such that the impedance variation occurring when the wireless power receiver is positioned is set to a second impedance variation different from the first impedance variation; applying detection power for detecting the wireless power receiver; detecting the second impedance variation during the application of the detection power so as to detect the wireless power receiver; and changing the impedance variation occurring when the wireless power receiver is positioned from the second impedance variation to the first impedance variation.

Inventors:

BYUN KANG-HO (KR)
KIM NAM-YUN (KR)
KWON HYUK-CHOON (KR)
KIM HO-DONG (KR)
JUN HAE-YOUNG (KR)
JUNG SOO-YEON (KR)
JUNG HEE-WON (KR)

Application Number:

PCT/KR2013/006167

Publication Date:

January 16, 2014

Filing Date:

July 10, 2013

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H02J17/00

Domestic Patent References:

WO2012073349A1

2012-06-07

Foreign References:

US20110241440A1	2011-10-06
US20120049861A1	2012-03-01
US20120161538A1	2012-06-28
US20110221388A1	2011-09-15

Other References: