Samsung Electronics Co., Ltd.

Chang-Hak O

Jae-Wan Park

Kihyun Kim

Se-Ho Park

Seho Park

Mincheol Ha

Wooram Lee

Ji-Won Kim

Dongzo Kim

Yunjeong Noh

Dong-Zo Kim

Yong Sang Yun

Hyungkoo Chung

Kyoungwon Kim

Jongchul Hong

Ju-Hyang Lee

Hyung-Koo Chung

Kyoung-Won Kim

Se-Hyun Cho

Kwang-Seob Kim

Kyeongjun Kim

According to various embodiments, provided is an electronic device, which comprises a housing and a relay circuit located inside the housing and is capable of receiving and/or retransmitting an electromagnetic field of an external electronic device, wherein the relay circuit is configured to form a resonant frequency higher than that of an operating frequency range of the electromagnetic field transmitted by the external electronic device. Additional various embodiments are possible.

Cover comprising relay coil for wireless charging, or electronic device comprising same

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.

Method and electronic device for performing wireless charging

An electronic device according to one embodiment of the present disclosure includes a conductive coil, a power generation circuit, and one or more processors operatively connected to the power generation circuit and may be configured to: compare an amount of transmission power to be supplied to a power reception device with designated threshold power amount, determine a designated frequency to be a frequency of a control signal for controlling the power generation circuit when the amount of transmission power is equal to or less than the designated threshold power amount, determine a phase of the control signal based at least in part on the amount of transmission power and/or the designated frequency when the designated frequency is determined to be the frequency of the control signal, transmit the control signal having the designated frequency and the phase to the power generation circuit to generate, based at least in part on the control signal, transmission power corresponding to the amount of transmission power, and supply the transmission power generated by the power generation circuit to the power reception device wirelessly via the conductive coil.

Wireless charging method and electronic device supporting same

Growing community of inventors

Suwon-si, South Korea

Chang-Hak O