Samsung Electronics Co., Ltd.

Dong-Zo Kim

Sung-Ku Yeo

Sung-Bum Park

Do-Won Kim

Jae-Hyun Park

Keum-Su Song

Young-Ho Ryu

Bong-Chul Kim

Sang-Wook Kwon

Hyung-Koo Chung

Se-Hyun Cho

Kwang-Seob Kim

Ki-Young Kim

Ji-Won Kim

Byoung-Hee Lee

Yu-su Kim

Kyu-sub Kwak

Min-Cheol Ha

Se-Ho Park

Yu-Su Kim

Jong-Chul Hong

Chang-Yeong Kim

Chong-Min Lee

Ju-Hyang Lee

Kyoung-Won Kim

Chang-Hak O

Chi-Hyung Ahn

A wireless power receiver is disclosed. A wireless power receiver according to various embodiments of the present disclosure includes a resonant reception unit configured to receive wireless power by a resonance scheme; an inductive reception unit configured to receive wireless power by an induction scheme; and a power processing unit configured to process wireless power received at the resonant reception unit and the inductive reception unit. When the wireless power is received by the induction scheme, a current flowing in the inductive reception unit is greater than a current flowing in the resonant reception unit, and when the wireless power is received by the resonance scheme, a current flowing in the resonant reception unit is greater than a current flowing in the inductive reception unit.

Wireless power receiver

A wireless power transmitting apparatus wirelessly charging a wireless power receiving apparatus is provided. The wireless power transmitting apparatus includes a power providing unit configured to provide power, a gate driver configured to generate a differential signal formed of a first signal and a second signal from the power provided from the power providing unit, an amplifier configured to amplify the differential signal by a predetermined gain, a power transmitting unit configured to transmit the amplified differential signal to the wireless power receiving apparatus, and a differential signal correcting circuit that is disposed between the gate driver and the amplifier and is configured to correct the differential signal so that a predetermined phase difference between the first signal and the second signal is maintained.

Wireless power transmitting apparatus, wireless power receiving apparatus, and circuit for correcting differential signal

A method of a charging apparatus for controlling wireless charging is provided. The method includes detecting an electronic device, determining a charging method corresponding to the detected electronic device, and wirelessly charging the electronic device by selecting a coil corresponding to the determined charging method.

Charging apparatus and method for controlling wireless charging

An electronic device includes a controller to receive a signal from an external electronic device, and, based at least in part on the received signal, identify a wireless power scheme among at least two wireless power schemes. During the transmission mode, the controller controls the full bridge circuit to convert DC power to AC power based on a wireless power frequency corresponding to the identified wireless power scheme by controlling at least one transistor of the full bridge circuit, and controls to wirelessly transmit power based on the AC power to the external electronic device. During the reception mode, the controller controls to receive power from the external electronic device, controls the full bridge circuit to convert the received power to DC power by controlling transistors of the full bridge circuit, and controls to provide the converted DC power for the battery of the electronic device.

Electronic device and method for wireless charging in electronic device

An electronic device performing communication with a powerless sensor is provided. The electronic device includes a wireless charging module configured to wirelessly transmit power to a powerless sensor; and a communication module configured to receive data that is sensed in the powerless sensor using the wirelessly transmitted power.

Electronic device for operating powerless sensor and control method thereof

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

Disclosed are various embodiments relating to a wearable device. According to an embodiment, a wearable device including a wireless charging device may include: a housing of the wearable device; first and second straps connected to the housing; first and second buckles provided on the first and second straps; a reception resonator provided in the housing to receive power transmitted from the outside; and a wireless power reception module provided in the housing and electrically connected to the reception resonator. Various other embodiments can be made.

Wearable device

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

A wireless power receiver is provided. The wireless power receiver includes a substrate partitioned into a first area and a second area neighboring the first area, a circuit portion mounted in the first area of the substrate and including a receiving module, a resonance pattern portion directly provided on at least one surface of the substrate in the second area, and a shield mounted on a surface of the substrate in the second area.

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 wireless power transmitter for wirelessly transmitting power to a wireless power receiver is provided. A wireless power transmitter according to various embodiments may include: a driving unit that provides power; and a power transmission unit that wirelessly transmits power to the wireless power receiver based on the power received from the driving unit, wherein the power transmission unit may include at least one capacitor; a first coil connected to the at least one capacitor, and a second coil connected to the at least one capacitor and disposed parallel to the first coil.

Wireless power transmitter

An electronic device is provided that includes a housing and a power receiver disposed within the housing. The power receiver includes a conductive pattern for receiving power wirelessly. The conductive pattern includes a main coil having a plurality of turns, a first sub-coil formed at an input port of the main coil, and a second sub-coil formed at an output port of the main coil. The electronic device also includes a controller configured to control to receive power using the conductive pattern.

An electronic device according to various embodiments of the present disclosure includes a power supply configured to supply DC power, a controller configured to determine a wireless power transmission mode or a wireless power reception mode if at least one electronic device is detected, and output a control signal indicating a wireless power transmission frequency supported by the detected electronic device from among a plurality of wireless power transmission frequencies if the wireless power transmission mode is determined, a conversion circuit configured to output the DC power supplied from the power supply as AC power in response to the control signal output from the controller and a wireless power transceiver configured to transmit the AC power supplied.

Growing community of inventors

Yongin-si, South Korea

Dong-Zo Kim