公开(公告)号：US20200006986A1

公开(公告)日：2020-01-02

申请号：US16489012

申请日：2018-02-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang-Seob KIM ,  Dong-Zo KIM ,  Ji-Won KIM ,  Keum-Su SONG ,  Min-Cheol HA ,  Jong-Chul HONG ,  Se-Hyun CHO

IPC: H02J50/12 ,  H02J7/02 ,  H02M7/58

Abstract: A wireless power transmission apparatus according to various embodiments of the present invention may comprise: a power provision circuit for providing direct current (DC) power; a first conductive pattern; a second conductive pattern; multiple first switches connected to one end of the first conductive pattern and one end of the second conductive pattern; multiple second switches connected to the other end of the first conductive pattern; multiple third switches connected to the other end of the second conductive pattern; and a control circuit, wherein the control circuit controls the multiple first switches and the multiple second switches to convert the DC power into first alternating current (AC) power and apply the first AC power to the first conductive pattern and control the multiple first switches and the multiple third switches to convert the DC power into second AC power and apply the second AC power to the second conductive pattern. Various other embodiments are possible.

公开(公告)号：US20180278099A1

公开(公告)日：2018-09-27

申请号：US15928210

申请日：2018-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Chul HONG ,  Kwang-Seob KIM ,  Dong-Zo KIM ,  Ji-Won KIM ,  Keum-Su SONG ,  Min-Cheol HA ,  Se-Hyun CHO

IPC: H02J50/90 ,  H01F38/14 ,  H02J7/02 ,  H02J50/12

Abstract: Disclosed is an apparatus for transmitting wireless power including: a plurality of coils; a position-sensing circuit that determines a position of an electronic device charged by the apparatus; and a control circuit determines at least one coil corresponding to the determined position of the electronic device from among the plurality of coils and transmit wireless charging power through one coil selected from the at least one determined coil. Other embodiments can be applied.

公开(公告)号：US20180159371A1

公开(公告)日：2018-06-07

申请号：US15830416

申请日：2017-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyoung-Won KIM ,  Dong-Zo KIM ,  Se-Ho PARK ,  Kwang-Seob KIM ,  Chang-Hak O ,  Ju-Hyang LEE ,  Hyung-Koo CHUNG ,  Se-Hyun CHO

IPC: H02J50/10 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80

Abstract: A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.