公开(公告)号：US20210280365A1

公开(公告)日：2021-09-09

申请号：US17189788

申请日：2021-03-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Korea Advanced Institute of Science and Technology

Inventor： Jang Yeol KIM ,  In Kui CHO ,  HYUNJOON LEE ,  Sang-Won KIM ,  Seong-Min KIM ,  Jung Ick MOON ,  Woo Cheon PARK ,  Je Hoon YUN ,  Jaewoo LEE ,  Ho Jin LEE ,  Dong Won JANG ,  Kibeom KIM ,  Seungyoung AHN

IPC: H01F27/32 ,  H01F27/24 ,  H01F41/04 ,  H01F27/28 ,  G01R33/02

Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

公开(公告)号：US20190334379A1

公开(公告)日：2019-10-31

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 ,  H02J5/00 ,  H02J50/80

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：US20180235112A1

公开(公告)日：2018-08-16

申请号：US15599908

申请日：2017-05-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung Chan KIM ,  Sang-Won KIM ,  Seong-Min KIM ,  Jung Ick MOON ,  Sang Bong JEON ,  In Kui CHO ,  Hyung Do CHOI

IPC: H05K9/00 ,  G01R33/025

CPC classification number: G01R33/025 ,  H01F27/365 ,  H02J7/0042 ,  H02J7/025 ,  H02J50/10 ,  H02J50/70 ,  H04R2209/022

Abstract: Disclosed is a magnetic field shielding apparatus including an energy transmitter configured to generate a magnetic field, an energy receiver configured to receive the magnetic field generated by the energy transmitter, and a magnetic shield configured to shield a leaked magnetic field that is not received by the energy receiver, the magnetic shield including at least one closed region through which the leaked magnetic field passes, and at least one open region including a protrusion through which the leaked magnetic field moves to an inside of the magnetic field shielding apparatus after absorbed into the closed region.

公开(公告)号：US20180152049A1

公开(公告)日：2018-05-31

申请号：US15428283

申请日：2017-02-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Bong JEON ,  Jung Ick MOON ,  Sang-Won KIM ,  Seong-Min KIM ,  In Kui CHO ,  Jong Hwa KWON ,  Byung Chan KIM ,  Hyung Do CHOI

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/90

Abstract: Provided is an apparatus for reducing an electromagnetic wave in a wireless power transmitter using a reducing coil, the apparatus that may cancel external emission of a magnetic field formed at a transmission coil using the reducing coil based on induced electromotive force.

公开(公告)号：US20170155195A1

公开(公告)日：2017-06-01

申请号：US15365515

申请日：2016-11-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Je Hoon YUN ,  Seong Min KIM ,  Jung Ick MOON ,  Duk Ju AHN ,  Soon Ik JEON ,  In Kui CHO

IPC: H01Q7/00 ,  H04B5/00

CPC classification number: H01Q7/00 ,  H04B5/0037 ,  H04B5/0081

Abstract: A coaxial resonance coil having a toroidal shape for wireless power transmission is provided. The coaxial resonance coil may include a central conductive wire used as a power feeding loop for indirectly feeding power to a resonance coil, and an outer conductive wire used as a resonance coil which is wound a plurality of turns in a toroidal shape around the central conductive wire as an axis.

公开(公告)号：US20160156200A1

公开(公告)日：2016-06-02

申请号：US14953102

申请日：2015-11-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong Min KIM ,  Jung Ick MOON ,  Je Hoon YUN ,  In Kui CHO

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J7/025 ,  H02J50/20 ,  H02J50/80

Abstract: Disclosed is a wireless power receiving apparatus, which includes: a residual power collecting unit configured to collect residual power remained after supplying an RF power signal to a load while receiving the RF power signal through a resonator; a power selecting unit configured to select one of the RF power signal and a power signal of an auxiliary battery according to a reception state of the RF power signal; a communication unit configured to receive the power signal of the auxiliary battery and perform wireless communication with the wireless power transmitting apparatus, when a supply of power to the load is required in a state in which the transmission of the RF power signal from the wireless power transmitting apparatus is stopped; and a controller configured to request the transmission of the RF power signal to be supplied to the load.

Abstract translation: 公开了一种无线电力接收装置，其包括：剩余电力收集单元，被配置为在通过谐振器接收RF功率信号时，将供给RF功率信号之后的剩余功率收集到负载; 功率选择单元，被配置为根据所述RF功率信号的接收状态来选择所述RF功率信号和所述辅助电池的功率信号中的一个; 通信单元，被配置为在从无线电力发送RF功率信号的状态下需要向负载供电时，接收辅助电池的电力信号并且执行与无线电力发送装置的无线通信 发送装置停止; 以及控制器，被配置为请求传送要提供给负载的RF功率信号。

公开(公告)号：US20140172658A1

公开(公告)日：2014-06-19

申请号：US13909431

申请日：2013-06-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： In Kui CHO ,  Je Hoon YUN ,  Seong-Min KIM ,  Jung Ick MOON ,  Woo Jin BYUN ,  Jae Ick CHOI

IPC: G06Q20/14 ,  G06Q10/00 ,  G06Q30/04

CPC classification number: G06Q20/145 ,  G06Q10/30 ,  G06Q30/04 ,  Y02W90/20

Abstract: A volume-rate food-waste disposal apparatus recognizes a user who discharges food-waste into the food-waste disposal apparatus to produce source information and weights the food-waste to produce weight information. The food-waste disposal apparatus receives an electrical power in a wireless manner and dries the food-waste using magnetic waves. The food-waste disposal apparatus transmits the source information and the source information to a charging server so that an on-line food-waste disposal fee per source is billed on a basis of a prefixed food-waste disposal fee per weight.

Abstract translation: 体积小的食物废物处理装置识别将食物废物排放到食物废物处理装置中以产生源信息并对食物废物进行重量以产生重量信息的用户。 食品废物处理装置以无线方式接收电力，并且使用磁波来干燥食物废物。 食品废物处理设备将源信息和源信息传送到计费服务器，以便根据每个重量的前置食物废物处理费来计算每个来源的在线食物废物处理费。