Samsung Electronics Co., Ltd.

Jong-Chul Hong

Ji-Won Kim

Dong-Zo Kim

Keum-Su Song

Min-Cheol Ha

Se-Hyun Cho

Kwang-Seob Kim

Ki-Hyun Kim

Woo-Ram Lee

Kyoung-Won Kim

Yun-Jeong Noh

Jin-Yong Lee

Min-Hwa Jeong

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.

Wireless power transmission apparatus and operating method thereof

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.

Apparatus for transmitting wireless power and method of transmitting wireless power according to position type

A cordless charging apparatus includes a housing, a main substrate accommodated in the housing, a coil unit stacked on the main substrate, and a connection member for electrically connecting the coil unit to the main substrate. The connection member includes a connector provided on the main substrate, and a connection substrate provided at the coil unit in order to contact the connector and electrically connect with the coil unit stacked on the main substrate.

Cordless charging apparatus

Growing community of inventors

Gyeonggi-do, South Korea

Jong-Chul Hong