Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Bong-Chul Kim

Sung-Ku Yeo

Dong-Zo Kim

Ki-Young Kim

Ji-Hoon Jung

Do-Won Kim

Sung-rok Bang

Jae-Hyun Park

Sang-Wook Kwon

Yu-su Kim

Dae-Hyun Kim

Yun-kwon Park

Yu-Su Kim

Hyung-Koo Chung

Byoung-Hee Lee

Chong-Min Lee

Young-Ho Ryu

Gun-Woo Moon

Ashish Khandelwal

Sanoop Ramachandran

Jason Battle

Jae-Ii Baek

Pradipta Patra

Shin-Young Cho

Yun-Kwon Park

Sung-Rok Bang

Jason Michael Battle

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

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

A power providing device according to an embodiment of the present disclosure comprises a charger configured to adjust at least one of a voltage and a current of power provided from a power supplying source and to provide the adjusted power to an electronic device and a processor configured to receive, from the electronic device, at least one of identification information of the electronic device and information related to a battery of the electronic device, and to control the charger to adjust at least one of the voltage and the current of the power using at least one of the identification information about the electronic device and the information related to the battery of the electronic device.

Power providing device, electronic device for receiving power, and method for controlling the same

An electronic apparatus, a charge controlling method, and a computer-readable recording medium are provided. The electronic apparatus includes a battery unit including a battery and configured to supply power to components of the electronic apparatus using power of the battery, a charging circuit configured to, in response to the power being received from an external adapter, charge the battery using the received power, and a controller configured to detect a charging state of the battery, divide a charging process into a plurality of charging periods according to the detected charging state, and control the charging circuit to provide different target voltages to the divided charging periods and target currents determined according to the different target voltages and preset power consumption to the battery.

Electronic apparatus, charge controlling method, and computer-readable recording medium

An electronic device for charging a battery is provided. The electronic device includes a first path configured to receive a first power of a first voltage from an adapter, a second path configured to receive a second power of a second voltage from the adapter, a charger, connected to the first path, configured to receive the first power, adjust at least one of a voltage or a current of the first power, and provide the adjusted first power to the battery; and a processor configured to control to connect the second path to the battery during fast charging to directly connect the battery to the adapter.

Electronic device for performing charging and method for controlling the same

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.

Wireless power receiver

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.

An electronic apparatus for charging a battery with an optimum charge profile corresponding to a pattern of use and a state of the battery is provided. The electronic apparatus may include a power supply configured to supply power to respective components of the electronic apparatus using power of a battery, and when receiving an input of power from an external adaptor, to charge the battery using the inputted power, and a processor configured to fully charge and discharge the battery to thus generate a charge curve and a discharge curve expressed in time and charge amount, and control the power supply to charge the battery using a charge profile corresponding to the generated charge curve and discharge curve.

Electronic apparatus, method for controlling charge and computer-readable recording medium

A method and an apparatus for wirelessly transmitting power are provided. The method includes transmitting power of a first level determined based on a maximum load power level of a load, which is electrically connected to a wireless power receiver, to the wireless power receiver, receiving information on a used load power level according to a load change in the load from the wireless power receiver, and controlling a power level transmitted to the wireless power receiver according to the information on the received used load power level.

Method and apparatus for transmitting wireless power

A wireless power receiver and a method for controlling the wireless power receiver are provided. The wireless power receiver includes a resonant circuit configured to receiving electromagnetic waves from a wireless power transmitter and output alternate current (AC) power, a rectifier configured to rectify the AC power received from the resonant circuit into direct current (DC) power, a DC/DC converter configured to convert the DC power received from the rectifier and output the converted DC power, a battery, a charger configured to charge the battery with the converted DC power, and a controller configured to, upon detection of an event indicating a change in impedance at an output end of the DC/DC converter, control the impedance at the output end of the DC/DC converter and keep the impedance constant by adjusting voltage at the output end of the DC/DC converter.

Wireless power receiver and method for controlling the wireless power receiver

The present invention relates to an electronic device and a method for controlling a charging operation of a battery. The charging control method includes charging a battery using a first charging mode, if a current voltage of the charged battery coincides with a predetermined voltage, decreasing an intensity level of a charging current and charging the battery using the decreased charging current intensity, and if the decreased charging current intensity coincides with a predetermined current intensity, converting from the first charging mode to a second charging mode and charging the battery using the second charging mode.

Growing community of inventors

Seoul, South Korea

Bong-Chul Kim