Samsung Electronics Co., Ltd.

Hongik University Industry-academia Cooperation Foundation

Seoul National University

Sungkyunkwan University

Young-Ho Ryu

Jae-Hyun Park

Sung-Bum Park

Sung-Ku Yeo

Chong-Min Lee

Do-Won Kim

Dong-Zo Kim

Jae-Seok Park

Sang-Wook Kwon

Keum-Su Song

Chang-Hyun Lee

Kyung-Woo Lee

Sang-Wook Lee

Jae-Hyuck Shin

Jeong-Hae Lee

Kwi-Seob Um

Woong-il Choi

Kyu-sub Kwak

Myung-ho Kim

Min-Seo Park

Dae-Hyun Kim

Chang-Hyun Kim

Dong-Soo Lee

Kang-yoon Lee

Jae-Gon Lee

Chang-Yeong Kim

Seong-Wook Lee

Bong-Chul Kim

Sang-yun Kim

Seong-Cheol Kim

Byeong-Ho Lee

Dong-In Kim

Chi-Hyung Ahn

Young-jun Yoon

Hamed Abbasizadeh

Seung Il Huh

Thi Kim Nga Truong

Sang-Wook Chi

Chang-hyun Kim

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 device according to an embodiment may include a power transmission circuit and a processor. The processor may be configured to control the power transmission circuit to wirelessly transmit power to a first area around the wireless power transmitting device, perform a predetermined first operation when an obstacle is detected in a second area around the first area, and perform a predetermined second operation when it is detected that the obstacle has entered the first area.

Wireless power transmitting device, electronic device for wirelessly receiving power and operation method thereof

In various embodiments, an antenna array may comprise a dielectric; a first patch antenna disposed on a first region of the dielectric; a second patch antenna disposed on a second region of the dielectric; and a ground layer including a first sub-ground layer in contact with a lower portion of the first region of the dielectric, a third sub-ground layer in contact with a lower portion of the second region of the dielectric, and a second sub-ground layer spaced apart from a lower portion between the first region and the second region of the dielectric.

Antenna array

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

A wireless power transmission apparatus includes patch antennas which form an RF wave; a memory storing electromagnetic wave distribution maps corresponding to transmission conditions for transmitting the RF wave; and a processor configured to determine a position of an electronic device and a position of a living body, determine a transmission condition which transmits the RF wave which causes an electromagnetic wave having a size not exceeding a first threshold value to be applied to a position of the living body while being beam-formed at a position of the electronic device, using at least a portion of the electromagnetic wave distribution maps, and generate the RF wave with the determined transmission condition using the patch antennas, each electromagnetic wave distribution map indicating the size of electromagnetic waves at one or more points around the wireless power transmission apparatus when the RF wave is formed by each of the transmission conditions.

Wireless power transmission apparatus and control method thereof

In various embodiments, a metamaterial structure antenna may comprise: a feed line for feeding a signal; a ground plane comprising a cross-shaped aperture forming circular polarization on the basis of a magnetic field induced by the fed signal; and a patch plane formed parallel to the ground plane which emits electromagnetic waves on the basis of the circular polarization.

Metamaterial structure antenna and metamaterial structure array

A wireless power transmission device radiating electromagnetic waves is disclosed. The wireless power transmission device can comprise: a first circuit board; a first conductive member mounted on a first surface of the first circuit board; a first ground member mounted on a second surface facing opposite from the first surface; and an electrical circuit disposed on a position, on the second surface of the first circuit board, which does not overlap the first ground member and for controlling the radiation of electromagnetic waves from the first circuit board.

Wireless power transmission device

Disclosed are a wireless power transmission device and a control method thereof. The wireless power transmission device includes a communication circuit that receives information transmitted by an electronic device that receives wireless power; an array antenna including multiple cells that radiate wireless power; and a controller that receives the information transmitted by the electronic device through the communication circuit, combines cells of the multiple cells included in the array antenna based on the information and creates a group of cells corresponding to the electronic device, and controls the cells included in the group to radiate the wireless power towards the electronic device.

Wireless power transmission device and control method thereof

A wireless power transmitter is disclosed. The wireless power transmitter may include a first coil for generating a first magnetic field of a first direction in order to charge a first wireless power receiver which is disposed in a first posture on the wireless power transmitter, and a second coil for generating a second magnetic field of a second direction in order to charge a second wireless power receiver which is disposed in a second posture on the wireless power transmitter.

Wireless power transmitter

A wireless power transmitting device is provided. The wireless power transmitting device may comprise an antenna, a memory, and a processor configured to control to store, as reference information, information of a first reflected signal of a pilot signal sent out through the antenna at a first time in the memory and control to compare the reference information with information about second reflected signals of a pilot signal sent out through the antenna at a second time, and determine a position of a target for detection based on a result of the comparison.

Wireless power transmitting device and method for controlling the same

An electronic device is provided. The electronic device includes a receiving circuit configured to wirelessly receive power and output AC power, a rectifying circuit configured to rectify the AC power from the receiving circuit, wherein the rectifying circuit may include a first P-MOSFET configured to transfer a positive amplitude of power to an output terminal of the rectifying circuit while the AC power has the positive amplitude and to prevent transferring a negative amplitude of power to the output terminal of the rectifying circuit while the AC power has the negative amplitude, and a forward loss compensating circuit connected with the first P-MOSFET configured to reduce a threshold voltage of the first P-MOSFET while the AC power has the positive amplitude.

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

A hybrid antenna used for an electronic device is disclosed. A hybrid antenna comprises: a substrate comprising a first surface and a second surface and having an insulator; a first conductive member disposed on the first surface of the substrate and having a hole formed therein; a second conductive member disposed on a first area of the second surface of the substrate; and a third conductive member disposed on a second area of the second surface of the substrate and connected to a ground of an electronic device, wherein a first portion of the first conductive member operates as a first antenna for receiving a broadband signal and supplying power to the electronic device, and a second portion operates as a second antenna for receiving wireless power and supplying power to the electronic device, wherein a first power feeding unit is formed between the first antenna and second antenna.

Hybrid antenna

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.

A wireless power transmitter configured to wirelessly transmit power to an electronic device is provided. The wireless power transmitter includes a power transmission antenna including a plurality of patch antennas for wirelessly transmitting power, a sensor, and a processor, wherein the processor may be configured to create a first clutter map representing a reflection characteristic of an object positioned around the wireless power transmitter based on, at least, first data obtained by the sensor during a first period, store the first clutter map, compare a difference between the first clutter map and second data obtained by the sensor during a second period with data contained in the first clutter map, create a second clutter map corresponding to the second period based on a result of the comparison, determine a position of an organism using the second data and the second clutter map, and control the power transmission antenna such that a magnitude of the RF wave is less than a predetermined value based on the position of the organism.

Wireless power transmitter and method for controlling the same

Growing community of inventors

Yongin-si, South Korea

Young-Ho Ryu