Samsung Electronics Co., Ltd.

Kumjong Sun

Kihyun Kim

Jihye Kim

Seho Park

Mincheol Ha

Wooram Lee

Yunjeong Noh

Sangmoo Hwangbo

Kyungha Koo

Jihong Kim

Ju-Hyang Lee

Changhyung Lee

Yongsang Yun

Kang-Ho Byun

Seonghoon Kang

Joohoan Do

Sujin Paik

An electronic device and a method thereof, which supports fast wireless charging, are provided. The electronic device includes a wireless power circuit, and one or more processors which are functionally connected with the wireless power circuit, wherein the one or more processors are configured to execute detecting an external electronic device through the wireless power circuit, determining wireless power information corresponding to the external electronic device, determining whether the external electronic device supports a first charging power or a second charging power, at least partially based on the wireless power information, providing the first charging power to the external electronic device through the wireless power circuit, at least partially based on the determination that the external electronic device supports the first charging power, and providing the second charging power to the external electronic device through the wireless power circuit, at least partially based on the determination that the external electronic device supports the second charging power.

Method and apparatus for wireless charging

An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.

Wireless charging method and apparatus thereof

An electronic device, according to various embodiments, may comprise: a first antenna for obtaining power to be used for executing a function from a wireless signal transmitted from an external electronic device; and a second antenna for identifying information related to the function from the wireless signal. The first antenna, which is relatively larger than the second antenna, may be selectively opened or connected by means of a switch. When the wireless signal transmitted from the external electronic device includes identification information corresponding to the electronic device, the first antenna may be electrically connected to thus have a closed loop structure. The electronic device may electrically separate the first antenna. The first antenna may be electrically separated to thus have an open loop structure. The first antenna having an open loop structure may not interfere with wireless communication between the external electronic device and another external electronic device.

Electronic device and method for selectively opening or connecting switch connected to antenna based on identification information received from external electronic device

Various embodiments of the present disclosure relate to an apparatus and method for controlling a differential signal of a wireless power transmitter. For example, an apparatus for controlling a differential signal of a wireless power transmitter may include a converter configured to convert a single signal into differential signals; an amplifier operably coupled to the converter and configured amplify power of the differential signals, thereby providing amplified differential signals; a gauge operably coupled to the amplifier and configured to measure a phase difference and amplitude between the amplified differential signals; and a controller for converting a pulse width of the differential signals by controlling the converter according to measurements by the gauge. Further, various embodiments of the present disclosure also include other embodiments other than the aforementioned embodiments.

Apparatus and method for controlling differential signals of wireless power transmitter

Growing community of inventors

Suwon-si, South Korea

Kumjong Sun