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公开(公告)号:US20190140482A1
公开(公告)日:2019-05-09
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.
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公开(公告)号:US20170179754A1
公开(公告)日:2017-06-22
申请号:US15363818
申请日:2016-11-29
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.
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公开(公告)号:US20250046509A1
公开(公告)日:2025-02-06
申请号:US18918442
申请日:2024-10-17
Inventor: Jung Ick MOON , In Kui CHO , Sang-Won KIM , Seong-Min KIM , Ho Jin LEE , Je Hoon YUN , Dong Won JANG
IPC: H01F27/28
Abstract: A low-loss spiral coil includes a conducting wire wound N turns of which a width of each of wires corresponding to each of sections of the conducting wire is determined by setting an entire width of the conducting wire to be a width of M sections of the conducting wire, and then determining the width of each of the wires such that a resistance of the spiral coil formed based on the width of the M sections is minimized.
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14.
公开(公告)号:US20230140065A1
公开(公告)日:2023-05-04
申请号:US17976077
申请日:2022-10-28
Inventor: Je Hoon YUN , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , In Kui CHO , Gwangzeen KO , Dong Won JANG
Abstract: A wireless power transmission resonator using a conducting wire with a vertical rectangular cross-section is disclosed. The wireless power transmission resonator may include a first element including a first element upper part arranged in an upper end of a resonator and a first element lower part arranged in a lower end of the resonator, wherein the first element upper part and the first element lower part each may include a spiral layer having a spiral structure that is wound to face a wide surface of a conducting wire including a vertical rectangular cross-section and a second element arranged in a center of the resonator and between the first element upper part and the first element lower part and including a spiral layer having a spiral structure that is wound to face the wide surface of the conducting wire including the vertical rectangular cross-section.
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公开(公告)号:US20220179017A1
公开(公告)日:2022-06-09
申请号:US17538288
申请日:2021-11-30
Inventor: Hyun Joon LEE , Jang Yeol KIM , Jae Woo LEE , In Kui CHO , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: An atomic magnetometer, which operates in a communication system using a magnetic signal in a very low frequency (VLF) band, may comprise: a vapor cell comprising one or more alkaline metal atoms; a pump light source configured to provide circularly polarized pump beams to the vapor cell; an irradiation light source configured to provide linearly polarized irradiation beams to the vapor cell; a magnetic signal detecting unit configured to detect a magnetic signal by measuring a polarization rotation angle from the linearly polarized irradiation beam passing through the vapor cell; and a bias magnetic field control unit configured to control a bias magnetic field applied to the vapor cell.
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公开(公告)号:US20220131417A1
公开(公告)日:2022-04-28
申请号:US17509277
申请日:2021-10-25
Inventor: Je Hoon YUN , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Woo Jin BYUN , Dong Won JANG , In Kui CHO
Abstract: A wireless power transmitting device includes: an upper coil including a first conical coil and a first spiral coil disposed beneath the first conical coil; a lower coil including a second spiral coil disposed to face the first spiral coil and a second conical coil disposed beneath the second spiral coil; a connecting stub configured to connect the upper coil and the lower coil to each other; and a power source configured to supply a power to the upper coil or the lower coil. The first spiral coil and the second spiral coil generate an electric field and a magnetic field in a resonance state to transfer at least some of the power from the power source to an external wireless power receiving device through the electric field and the magnetic field.
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公开(公告)号:US20210109173A1
公开(公告)日:2021-04-15
申请号:US17071530
申请日:2020-10-15
Inventor: Hyunjoon LEE , In Kui CHO , Jang Yeol KIM , Jaewoo LEE , Ho Jin LEE , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Woo Cheon PARK , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: The atomic magnetometer includes a light source device configured to output a linearly polarized irradiation light and a circularly polarized pump light, a first vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a first transmitted light, a second vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a second transmitted light, a magnetic field application device configured to apply a bias magnetic field in opposite directions to the first vapor cell and the second vapor cell, and a measuring device configured to obtain the magnetic field signal based on a differentiation of a first polarization rotation signal corresponding to a polarization state of the first transmitted light and a second polarization rotation signal corresponding to a polarization state of the second transmitted light.
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18.
公开(公告)号:US20190036379A1
公开(公告)日:2019-01-31
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
CPC classification number: 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.
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19.
公开(公告)号:US20170201126A1
公开(公告)日:2017-07-13
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.
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