公开(公告)号：US11502555B2

公开(公告)日：2022-11-15

申请号：US17246244

申请日：2021-04-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sang-Won Kim ,  Ho Jin Lee ,  In Kui Cho ,  Seong-Min Kim ,  Jung Ick Moon ,  Jang Yeol Kim ,  Je Hoon Yun ,  Jaewoo Lee ,  Hyunjoon Lee ,  Dong Won Jang

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/90 ,  H02J50/40

Abstract: A wireless power transmission system and method are disclosed. The wireless power transmission system includes a plurality of wireless power transmitters configured to provide power to a plurality of wireless power receivers, and a controller configured to control the wireless power transmitters based on information of the wireless power receivers. The controller is configured to receive information of a wireless power receiver from the wireless power receiver, calculate a transmission parameter associated with a transmission efficiency of power to be provided to the wireless power receiver using the information of the wireless power receiver, and provide power to the wireless power receiver through the wireless power transmitters based on the transmission parameter.

公开(公告)号：US10826328B2

公开(公告)日：2020-11-03

申请号：US16163359

申请日：2018-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Han Lee ,  In Kui Cho ,  Sang-Won Kim ,  Seong-Min Kim ,  Jung Ick Moon ,  Ho Jin Lee

IPC: H02J50/12 ,  H02J50/80 ,  H02J5/00

Abstract: A receiver of a wireless power transmission system may include a capacitor-and-inductor configured to receive power from a transmitter using a resonance, at least one capacitor configured to connect to an output node of the receiver, and a plurality of switches configured to control current flow within the receiver. The plurality of switches may be controlled so that the capacitor-and-inductor may be disconnected from the at least one capacitor and the output node at preset periods. Current resonating in the capacitor-and-inductor may increase during disconnection between the at least one capacitor and the output node. The plurality of switches may output the increased current to the battery by connecting the capacitor-and-inductor to the capacitor and the output node after the period, connect at least one capacitor and the output node in series after the period, and operate to reduce root mean square (RMS) current within the receiver.

公开(公告)号：US20190058349A1

公开(公告)日：2019-02-21

申请号：US15909302

申请日：2018-03-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang-Won Kim ,  Jung Ick Moon ,  Seong-Min Kim ,  In Kui Cho ,  Je Hoon Yun ,  Dong Won Jang

IPC: H02J7/02 ,  H01M10/44 ,  H02J50/10

Abstract: Disclosed is a wireless power transmitting device and method, the wireless power transmitting device including, in response to detection of a power receiver within a predetermined separation distance from a charging pad, a controller configured to generate a magnetic field through a transmission coil with a multilayer structure in which a plurality of coil layers of different sizes are stacked, and a power transmitter configured to wirelessly transmit, to a reception coil of the power receiver, a power signal generated using magnetic fields generated by the plurality of coil layers.

公开(公告)号：US09543789B2

公开(公告)日：2017-01-10

申请号：US13681636

申请日：2012-11-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong-Min Kim ,  In-Kui Cho ,  Jung-Ick Moon ,  Je-Hoon Yun ,  Sang-Hoon Cheon ,  Yong-Hae Kim ,  Myung-Lae Lee ,  Seung-Youl Kang ,  Woo-Jin Byun

IPC: H02J17/00

CPC classification number: H02J50/12 ,  H02J17/00 ,  H02J50/00 ,  H02J50/40 ,  H02J50/80 ,  Y10T307/25 ,  Y10T307/297

Abstract: Disclosed are an apparatus and a method for transmitting/receiving wireless energy in an energy transmission system. The apparatus includes: a transmitting controller configured to generate a wireless energy signal; a transmitting resonance body port configured to transmit the wireless energy signal; and a transmitting resonance body configured to transmit the wireless energy signal transmitted through the transmitting resonance body port to receiving apparatuses, wherein the transmitting controller transmits impedance control signals for controlling impedance of each of the receiving resonance body ports of the plurality of receiving apparatuses.

Abstract translation: 公开了一种在能量传输系统中发送/接收无线能量的装置和方法。 该装置包括：发送控制器，被配置为产生无线能量信号; 发送谐振体端口，被配置为发送无线能量信号; 以及发送谐振体，被配置为将通过发送谐振体端口发送的无线能量信号发送到接收装置，其中发送控制器发送用于控制多个接收装置中的每个接收谐振体端口的阻抗的阻抗控制信号。

公开(公告)号：US09246359B2

公开(公告)日：2016-01-26

申请号：US13773873

申请日：2013-02-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Ick Moon ,  In Kui Cho ,  Seong-Min Kim ,  Je Hoon Yun ,  Woo Jin Byun

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J17/00 ,  H04B5/00 ,  H02J5/00 ,  H02J7/02

CPC classification number: H02J50/00 ,  H02J17/00 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0087

Abstract: Disclosed is an apparatus for harvesting leakage energy. The apparatus for harvesting leakage energy includes: an energy harvesting unit configured to harvest energy leaked while energy radiated from a transmitting unit of an energy transmitting apparatus is transmitted to a receiving unit of an energy receiving apparatus; and a harvesting circuit module configured to supply energy harvested by the energy harvesting unit to a load. In accordance with the embodiment of the present invention, energy efficiency of overall system can be increased by harvesting the leakage energy without affecting performance of a wireless power transmission system.

Abstract translation: 公开了一种用于收获泄漏能量的装置。 用于收集泄漏能量的装置包括：能量收集单元，被配置为收集从能量发射装置的发射单元辐射的能量被发射到能量接收装置的接收单元的泄露的能量; 以及收集电路模块，其被配置为将能量收集单元收集的能量提供给负载。 根据本发明的实施例，可以通过收集泄漏能量而不影响无线电力传输系统的性能来提高整个系统的能量效率。