-
公开(公告)号：US10910864B2
公开(公告)日：2021-02-02
申请号：US15909302
申请日：2018-03-01
Inventor： Sang-Won Kim , Jung Ick Moon , Seong-Min Kim , In Kui Cho , Je Hoon Yun , Dong Won Jang
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.
-
12.发明授权公开(公告)号：US10727701B2
公开(公告)日：2020-07-28
申请号：US16415117
申请日：2019-05-17
Inventor： Duk Ju Ahn , In Kui Cho , Seong Min Kim , Jung Ick Moon , Sang Bong Jeon , Byung Chan Kim , Je Hoon Yun , Dong Won Jang , Hyung Do Choi
Abstract: Provided is a wireless power reception apparatus which receives a power from a wireless power transmission apparatus. A wireless power reception apparatus which receives a power from a wireless power transmission apparatus, the wireless power reception apparatus comprising a duty controller configured to control a duty cycle; a power converter configured to convert an effective load resistance according to the duty cycle; a reception resonator configured to receive a power from a transmission coil of the wireless power transmission apparatus, wherein the duty cycle and a current of the transmission coil is adjusted based on a load resistance of the wireless power reception apparatus.
-
公开(公告)号：US10483787B2
公开(公告)日：2019-11-19
申请号：US16265422
申请日：2019-02-01
Inventor： In Kui Cho , Seong Min Kim , Jung Ick Moon , Duk Ju Ahn , Je Hoon Yun , Hyung Do Choi , Dong Won Jang
Abstract: Provided is a wireless charging apparatus for performing wireless charging of an electronic device including a receiving coil located in a three-dimensional (3D) wireless charging zone using a plurality of transmitting coils arranged in the 3D wireless charging zone and at least one power source configured to supply a current to the plurality of transmitting coils.
-
14.发明授权公开(公告)号：US10298066B2
公开(公告)日：2019-05-21
申请号：US15240043
申请日：2016-08-18
Inventor： Duk Ju Ahn , In Kui Cho , Seong Min Kim , Jung Ick Moon , Sang Bong Jeon , Byung Chan Kim , Je Hoon Yun , Dong Won Jang , Hyung Do Choi
Abstract: The wireless power reception apparatus includes: a duty controller configured to calculate an amount of current of a transmission coil required for the wireless power transmission apparatus and control a duty cycle by using at least one of distance information between the wireless power transmission apparatus and the wireless power reception apparatus or load current information; a power converter configured to convert an effective load resistance according to the duty cycle; a wireless data transmitter configured to transmit a signal that requires a control of the calculated amount of current of the transmission coil to the wireless power transmission apparatus; and a reception resonator configured to receive a power according to the amount of current of the transmission coil controlled by the signal that requires a control of the amount of current of the transmission coil from the wireless power transmission apparatus.
-
公开(公告)号：US11916309B2
公开(公告)日：2024-02-27
申请号：US17122218
申请日：2020-12-15
Inventor： Jaewoo Lee , In Kui Cho , Sang-Won Kim , Seong-Min Kim , Ho Jin Lee , Jang Yeol Kim , Jung Ick Moon , Woo Cheon Park , Je Hoon Yun , Hyunjoon Lee , Dong Won Jang
CPC classification number: H01Q7/005 , G01R33/3692 , H04B5/0025 , H01Q1/243
Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.
-
Patent Agency Ranking
公开(公告)号：US11750246B2
公开(公告)日：2023-09-05
申请号：US17553466
申请日：2021-12-16
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Korea Advanced Institute of Science and Technology
Inventor： Jang Yeol Kim , Jaewoo Lee , Hyunjoon Lee , In Kui Cho , Sang-Won Kim , Seong-Min Kim , Jung Ick Moon , Je Hoon Yun , Dong Won Jang , Seunghun Ryu , Seungyoung Ahn
IPC: H04B5/00 , H03K9/00 , H03D3/24 , G01R33/00 , G01R33/028
CPC classification number: H04B5/0075
Abstract: A magnetic field communication method and apparatus using a giant magnetoimpedance (GMI) magnetometer are disclosed. The magnetic field communication apparatus includes a GMI magnetometer configured to detect a first communication signal based on a received magnetic field signal, a first signal extractor configured to extract a second communication signal comprising a message signal from the first communication signal, a second signal extractor configured to extract a third communication signal by removing a magnetization frequency signal from the second communication signal, and a third signal extractor configured to extract the message signal by removing a carrier wave frequency signal from the third communication signal.
-
公开(公告)号：US11509170B2
公开(公告)日：2022-11-22
申请号：US16629010
申请日：2018-07-05
Inventor： In Kui Cho , Sang-Won Kim , Seong-Min Kim , Jung Ick Moon , Je Hoon Yun , Ho Jin Lee , Dong Won Jang
Abstract: A wireless power receiving apparatus, according to an example embodiment, may include a receiving coil in which a first wire including a copper core and a second wire not including a copper core are wound around a same axis. The second wire may be located at a pitch of the first wire, and a diameter of the second wire may correspond to the pitch of the first wire.
-
公开(公告)号：US10727698B2
公开(公告)日：2020-07-28
申请号：US15911264
申请日：2018-03-05
Inventor： Jung Ick Moon , Sang-Won Kim , Seong-Min Kim , In Kui Cho , Je Hoon Yun , Dong Won Jang
Abstract: Provided is a wireless power reception apparatus for wirelessly receiving power from a wireless power transmission apparatus, the wireless power reception apparatus including a reception coil configured to receive power by a harmonic with an n*f0 frequency that is generated through electromagnetic induction with the wireless power transmission apparatus; a matching circuit configured to transfer the harmonic with the n*f0 frequency to a harmonic generator; the harmonic generator configured to generate at least one harmonic with an m*n*f0 frequency by applying a multiplication factor m to the transferred harmonic with the n*f0 frequency; a filter configured to filter the harmonic with the m*n*f0 frequency; and a harmonic transmission coil configured to transmit the filtered harmonic with the m*n*f0 frequency to the wireless power transmission apparatus, and to attenuate the harmonic with the n*f0 frequency that is generated from the wireless power transmission apparatus.
-
公开(公告)号：US10693326B2
公开(公告)日：2020-06-23
申请号：US15986429
申请日：2018-05-22
Inventor： Seong-Min Kim , Sang-Won Kim , Jung Ick Moon , In Kui Cho , Je Hoon Yun , Dong Won Jang
IPC: H02J50/12
Abstract: Disclosed is a wireless power receiving apparatus capable of controlling an effective load resistance. The wireless power receiving apparatus may include a rectifier configured to generate a rectified voltage based on a magnetic field generated in a wireless power transmitting apparatus, and a controller configured to transmit, to the rectifier, a control signal for controlling a rectified phase of the rectifier to adjust an effective load resistance of the wireless power receiving apparatus.
-
20.发明授权公开(公告)号：US10673278B2
公开(公告)日：2020-06-02
申请号：US15267622
申请日：2016-09-16
Inventor： Jung Ick Moon , Seong Uk Baek , Byoung In Lee , Woo Chul Lee , Jong Seup Lee , Dong Woo Cheon , Sang Bong Jeon , Seong Min Kim , Duk Ju Ahn , In Kui Cho , Byung Chan Kim , Je Hoon Yun , Dong Won Jang , Hyung Do Choi
Abstract: Provided is a wireless power transmission device to reduce an electromagnetic wave except for a signal to be transmitted during wireless power transmission, the wireless power transmission device including a transmitter configured to generate a magnetic field by inputting a high-frequency power signal generated by a transmission circuit into a first coil, a receiver configured to generate an induced current by allowing the generated magnetic field to pass through a second coil, and a reducer configured to reduce a harmonic component of the high-frequency power signal using a third coil inserted on a path between the transmitter and the receiver.
-
-
-
-
-
-
-
-
-
Search Results
21
records
(took 0.015 seconds)
