The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2018
Filed:
Jul. 10, 2013
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Kang-Ho Byun, Gyeonggi-do, KR;
Nam-Yun Kim, Seoul, KR;
Hyuk-Choon Kwon, Seoul, KR;
Ho-Dong Kim, Seoul, KR;
Hae-Young Jun, Gyeonggi-do, KR;
Soo-Yeon Jung, Seoul, KR;
Hee-Won Jung, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd, , KR;
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.