Samsung Electronics Co., Ltd.

Industry-university Cooperation Foundation Hanyang University

Korea Advanced Institute of Science and Technology

Sungkyunkwan University

Hongik University Industry-academia Cooperation Foundation

Keum Su Song

Ki Young Kim

Sang Wook Kwon

Yun Kwon Park

Young Ho Ryu

Dong Zo Kim

Chi Hyung Ahn

Nam Yun Kim

Jae Hyun Park

Byoung Hee Lee

Bong Chul Kim

Chang Wook Yoon

Jin Sung Choi

Mikhail Nikolaevich Makurin

Se Ho Park

Eun Seok Park

Chang Sik Yoo

Young Jin Moon

Han Seok Park

Ki Jun Kim

Nikolay Nikolayevich Olyunin

Yu Su Kim

Ju Hyang Lee

Chang Ho Lee

Jae Hoon Choi

Kyung Min Park

Ji Won Kim

Chi Hyun Cho

Yong Sang Yun

Seong Joong Kim

Youngoo Yang

Vladimir Yakovlevich Arkhipenkov

Alexander Gennadyevich Chernokalov

Yong Seong Roh

Ki Tae Lee

Min Ho Kang

Byung Chul Park

Jeong Hae Lee

Hyuk Choon Kwon

Orest Genrihovich Vendik

Jong Won Yu

Jun Seok Lee

Young Mi Ha

Kyoung Won Kim

Kwang Seob Kim

Wang Sang Lee

Irina Borisovna Vendik

Nikolay Nikolaevich Olyunin

Dmitry Sergeevich Kozlov

Hyung Koo Chung

Dmitry Victorovich Kholodnyak

Pavel Anatolevich Turalchuk

Evgenia Yurevna Zameshaeva

Min Cheol Ha

Ju Hui Kim

Sang Gyu Ha

Vladimir Parfenyev

Kang Ho Byun

Kyung Young Jung

Bong Chui Kim

A wireless power transmission apparatus includes a source resonator configured to transmit an output power from which a harmonic component has been cancelled to a wireless power reception apparatus by resonating with a target resonator of the wireless power transmission apparatus, and a resonant power generator configured to differentially input a first input signal and a second input signal to the source resonator, and cancel the harmonic component of the output power.

Method and apparatus for wireless power transmission with harmonic noise cancellation

A wireless power transmission apparatus includes resonators configured to transmit a power wirelessly to another resonator, and a controller configured to control a current magnitude and/or a voltage magnitude of a power to be provided to each of the resonators. The apparatus further includes a feeder configured to provide the power to each of the resonators.

Wireless power transmission apparatus and wireless power transmission method

An apparatus for changing a wireless charging mode includes a power receiving antenna configured to receive power from a power supply using a first frequency band, a communication circuit configured to communicate with the power supply using a second frequency band, a power management circuit configured to charge a battery using the received power, and a control circuit configured to be electrically connected with the power management circuit. In addition, various embodiments ascertained through the specification are possible.

Apparatus and method for altering wireless charging mode

A wireless power transmitter for wirelessly transmitting power is provided. The wireless power transmitter includes four cells configured to wirelessly transmit power to a wireless power receiver; a power source configured to provide power to one of the four cells; and a connection unit configured to connect the four cells to each other, wherein the connection unit is further configured to connect the four cells in a cross configuration.

Magnetic field adjusting three-dimensional flexible resonator for wireless power transmission system

A power transmitting unit is provided. The power transmitting unit includes a signal generator configured to generate a signal of a first frequency band for wireless charging, a power generation circuit configured to generate a modulation signal for modulating the signal of the first frequency band generated by the signal generator, and amplify a transmit power of the signal of the first frequency band based on voltage supplied from the outside of the power transmitting unit, a power transmission circuit configured to transmit the amplified transmit power to a power receiving unit via a first antenna, a second antenna configured to receive information about a charging state from the power receiving unit through a second frequency band, and a control circuit configured to control a duty and frequency of the modulation signal based on the charging state.

Power transmission apparatus and power transmission method

An electronic device is provided. The electronic device includes a housing and a first coil disposed in the housing and wound around a space formed inside. The housing includes a front cover and a rear cover. The rear cover includes a hole located in a first region of the rear cover that corresponds to the space of the first coil, a first slit that extends from an edge of the rear cover to the hole, and a second slit spaced apart from the first slit and extending from the edge. One end of the second slit is located in a second region of the rear cover that corresponds to the first coil. In addition, various other embodiments recognized through the present specification are possible.

Electronic device including slotted conductive housing for eddy current control during wireless charging

A stereoscopic flexible resonator is provided. The stereoscopic flexible stereoscopic resonator includes at least one cell, at least one resonator including a capacitor, and a connection unit configured to connect the cell and the resonator in a stereoscopic structure.

A wireless power relay apparatus includes a relay resonator configured to relay power from a source resonator configured to wirelessly transmit the power, to a target resonator configured to wirelessly receive the power through a mutual resonance, the relay resonator having a higher quality factor than the source resonator and the target resonator.

Wireless power transmission system and wireless power relay apparatus

A resonant apparatus in a wireless power transmission system, includes a main resonant unit configured to form magnetic resonant coupling between the resonant apparatus and a resonator. The resonant apparatus further includes a field guiding resonant unit configured to focus a magnetic field on an internal portion of the main resonant unit, and a field additive resonant unit configured to adjust a magnitude of a magnetic field formed between the main resonant unit and the field guiding resonant unit.

Apparatus and method for resonance in wireless power transmission system

A wireless power transmission apparatus includes a communicator configured to receive information associated with a reference power of a wireless power reception apparatus and information associated with a power measured at an input terminal of a direct current-to-direct current (DC/DC) converter of the wireless power reception apparatus, a controller configured to control an output power based on the information associated with the reference power and the information associated with the power measured, and a source resonator configured to transmit the output power to the wireless power reception apparatus by resonating with a target resonator.

Method and apparatus for wireless power transmission for efficent power distribution

An apparatus and a method for charge control are provided. The apparatus for charge control may include an integrated direct current-to-direct current (DC/DC) converter configured to step up an output voltage level of a load to be greater than or equal to a supply voltage level set in a power amplifier, and the power amplifier configured to convert a direct current (DC) voltage stepped up by the integrated DC/DC converter into an alternating current (AC) voltage based on a resonant frequency, and to amplify the converted AC voltage. The apparatus for charge control may include a rectification unit configured to convert an AC power received wirelessly into a DC power; and a DC/DC converter configured to step down a voltage level of the DC power to a voltage level required by a load in the receiving mode.

Apparatus and method for charging control in wireless charging system

A magnetic field generation apparatus includes a plurality of coplanar inductors disposed to form a planar structure, wherein each of the coplanar inductors is configured to generate a magnetic field having a basis vector that is orthogonal to a basis vector of a magnetic field generated by another one of the coplanar inductors.

Magnetic field generation apparatus having planar structure

A leakage power processing method of an electronic device including a first conductive pattern that sends and receives a communication signal associated with a communication function, a second conductive pattern that is arranged adjacent to the first conductive pattern and sends and receives a power signal used for charging, and a communication hardware interface electrically connected with the first conductive pattern is provided. The leakage power processing method includes determining, by a processor of an electronic device, whether a specific power signal is induced through the second conductive pattern and forming, by the processor of the electronic device, a closed loop including the first conductive pattern if the specific power signal of a specific magnitude or greater is induced.

Processing method for leakage power and electronic device supporting the same

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Seoul, South Korea

Keum Su Song