Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Seho Park

Wooram Lee

Yusu Kim

Kihyun Kim

Mincheol Ha

Jihye Kim

Yunjeong Noh

Kumjong Sun

Yongsang Yun

Chihyun Cho

Ju-Hyang Lee

Sangmoo Hwangbo

Kyungha Koo

Jihong Kim

Kyoungwon Kim

Dohyeon Kim

Keumsu Song

Byunghwa Park

Changhyung Lee

Kang-Ho Byun

Dongzo Kim

Yong Sang Yun

Juhyang Lee

Mingi Song

Jung-Oh Sung

Kyungmin Park

Kyung-Woo Lee

Yongyoun Kim

Soon Ryong Park

Kisun Lee

Seung-Nyun Kim

Hyungkoo Chung

Kwangseob Kim

Byungyeol Choi

Kyungwoo Lim

Hyunsup Park

Chi-Hyun Cho

Woosup Lee

Dongyoung Lee

Ku-Chul Jung

Hangseok Choi

Jae-Wan Park

Kyung-woo Lee

Kyusik Choi

Jungoh Sung

Haekwon Lee

Jeongmin Moon

Minjung Park

Jae-Woong Jeon

Kwangyeol Lee

Chang-Hak O

Kyeongjun Kim

Hanseok Park

Bongchull Kim

Cheolhee Hwang

Changjong Son

Sunghoon Song

Dongyung Kim

An electronic device, according to various embodiments of the present disclosure, may comprise: a first layer including a first antenna having a patch shape, and a second antenna at least partially surrounding the first antenna and having a coil shape; a second layer including a first pattern disposed at a position corresponding to the first antenna and configured to operate as a ground of the first antenna, and a second pattern electrically connected to the second antenna; a dielectric disposed between the first layer and the second layer; and a magnetic material disposed under the dielectric at a position corresponding to the second antenna.

Electronic device comprising patch antenna and coil antenna

An electronic device to which a wireless charging system is applied is provided. The electronic device includes a battery, a charging circuit, and a circuit board configured to be electrically connected to the charging circuit and include a first portion and a second portion disposed adjacent to the first portion, wherein a first coil, a second coil, and a resonance coil are disposed in the first portion of the circuit board, the first coil being disposed outside the second coil, and the resonance coil being disposed inside the second coil, and wherein a third coil and a resonance capacitor are disposed in the second portion of the circuit board, the resonance capacitor being disposed inside the third coil, and the resonance coil and the resonance capacitor being electrically connected to each other to generate a designated resonance.

Electronic device to improve the efficiency of wireless charging

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 according to various embodiments comprises a communication module, a sensor module, a wireless charging antenna, a wireless charging module connected to the wireless charging antenna, and at least one processor, wherein the at least one processor may be configured to: receive a signal related to wireless charging from an external device through the communication module; check information indicating the degree of proximity between at least a part of a human body and the electronic device by using the sensor module at least on the basis of the signal; transmit, to the external device, data for adjusting wireless power to be output by the external device at least on the basis of the information; and receive the adjusted wireless power from the external device through the wireless charging module.

Electronic device and method for transmitting information to external device for adjusting wireless power to be transmitted from external device on basis of proximity of external object

Provided are a wireless charging device and method. The wireless charging device may include: a first group of coils; a second group of coils; and a processor. The processor may be configured to: transmit a first ping signal through the first group of coils and the second group of coils; sense a change in current, voltage, and/or frequency occurring in the first group of coils and the second group of coils in response to the first ping signal to detect that an electronic device is placed on the wireless charging device; select at least one coil from the first group of coils and at least one coil from the second group of coils at which the change is sensed; transmit a second ping signal through the selected coils; and wirelessly transmit power to the electronic device by using the selected coils. Various other embodiments are also disclosed.

Device and method for wireless charging

The electronic device comprises: a housing; a wireless charging circuit disposed inside the housing; and a wireless charging antenna electrically connected to the wireless charging circuit and having a spiral shape, wherein the wireless charging antenna comprises: a first conductive pattern corresponding to a region in which current flows toward the inside of the wireless charging antenna from among the regions forming the wireless charging antenna; and a second conductive pattern corresponding to a region in which current flows toward the outside of the wireless charging antenna from among the regions forming the wireless charging antenna, and being disposed on a side of the first conductive pattern on the same plane as and in parallel with the first conductive pattern. The first conductive pattern and the second conductive pattern are formed of a plurality of layers including a first layer and a second layer. In a first region where a partial region of the first conductive pattern and a partial region of the second conductive pattern cross each other, the first conductive pattern may not include the first layer, and the second conductive pattern may not include the second layer.

Electronic device including wireless charging antenna and structure thereof

A wireless charging device is provided and includes a first inverter, a first switch electrically connected to the first inverter, a second inverter, a second switch electrically connected to the second inverter, a first coil group connected to the first inverter through the first switch, a second coil group connected to the second inverter through the second switch, and a processor operatively connected to the first inverter, the first switch, the second inverter, the second switch, the first coil group, and the second coil group. The processor detects an electronic device disposed above the wireless charging device through at least one coil in the first coil group or the second coil group, and to wirelessly transmit power to the electronic device by using one coil in the first coil group and one coil in the second coil group.

Wireless charging device and method for charging electronic device using the same

A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes an upper housing, a lower housing coupled to the upper housing, a substrate disposed between the upper housing and the lower housing, a transmit coil disposed between the upper housing and the substrate and formed by being wound in the form of rotating on the substrate, at least one temperature sensor including a pattern resistor, a resistance numerical value which varies with temperature, and a flexible printed circuit board (FPCB) on which the at least one temperature sensor is disposed. The pattern resistor is disposed on the FPCB in a pattern of being wound in a first direction from any first point on the FPCB to any second point different from the any first point on the FPCB around a central portion of the FPCB and being rewound in a second direction opposite to the first direction.

Wireless power transmission apparatus

An electronic device includes a power transmitting circuit configured to transmit power to a wireless power receiver, a communication circuit configured to perform communication with the wireless power receiver, and a control circuit configured to control the power transmitting circuit to apply first power to a coil of the power transmitting circuit, control the power transmitting circuit to stop applying the first power and to prevent power from being applied to the coil during a first period, identify a first Q-factor during the first period, control the power transmitting circuit to apply, to the coil, a second power based on a calibration operation for identifying at least one parameter used for identifying a power loss during power transmission, control the power transmitting circuit to stop applying the second power and to prevent power from being applied to the coil during a second period, identify a second Q-factor during the second period, and identify a validity of the at least one parameter based on the first Q-factor or the second Q-factor.

Electronic device for wirelessly transmitting or receiving power and method for operating the same

Electronic device and method for driving electronic device. The electronic device includes battery, power management integrated circuit (PMIC) configured to control charging status of battery, coil, wireless power circuit electrically connected to coil, communication circuit electrically connected to coil, and processor, wherein processor is configured to, when the wireless power circuit is in a transmission (Tx) mode, transmit a wireless power signal through the coil by using the wireless power circuit, and transmit a signal obtained by frequency shift keying (FSK)-modulating a transmission device parameter by using the communication circuit, to an external electronic device through the coil, and when the wireless power circuit is in a reception (Rx) mode, receive wireless power by using the wireless power circuit to charge the battery, and transmit a signal obtained by amplitude shift keying (ASK)-modulating a reception device parameter by using the communication circuit, to the external electronic device through the coil.

Electronic device and method for wired and wireless charging in electronic device

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 capable of transmitting and receiving wireless power is provided. The electronic device includes a wireless power transfer (WPT) coil, a sensor coil surrounding the WPT coil, and a processor operatively coupled to the WPT coil and the sensor coil. The processor may be configured to control to transmit and receive power by using the WPT coil, perform a ping operation by using the sensor coil, control to measure a waveform of a current or voltage of the sensor coil while or after performing the ping operation using the sensor coil, control to check a Q factor of the sensor coil based on the measured waveform, identify the presence of a foreign object based on the checked Q factor, and control the power transmission using the WPT coil based on a result of the determination of the presence of the foreign object.

Method for detecting foreign object using sensor coil and electronic device

A wireless power transmitter is provided. The wireless power transmitter includes an inverter configured to output alternating current (AC) power using direct current (DC) power, a coil configured to receive the AC power, and a control circuitry, wherein the control circuitry is configured to identify an input associated with transmitting the AC power, output the AC power at a specified frequency determined according to the input, using the inverter, transmit the AC power to an external electronic device using the coil, and, while at least partially transmitting the AC power to the external electronic device, transmit information associated with an amount of the DC power input to the inverter to output the AC power to the external electronic device, such that the external electronic device identifies transmission efficiency of the AC power using the information associated with the amount of DC power.

Apparatus for transmitting and receiving information about amount of power for identifying transmission efficiency associated with wireless power transfer and control method therefor

Growing community of inventors

Gyeonggi-do, South Korea

Seho Park