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1.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.
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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.
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Patent Agency Ranking
3.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.
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公开(公告)号：US20250007329A1
公开(公告)日：2025-01-02
申请号：US18756613
申请日：2024-06-27
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INCHEON NATIONAL UNIVERSITY RESEARCH & BUSINESS FOUNDATION
Inventor： Seong Min KIM , Saidul Alam Chowdhury , Duk Ju Ahn
IPC: H02J50/12
Abstract: A wireless charging reception system and control method capable of adjusting resonance frequency are disclosed. According to an embodiment of the present disclosure, a wireless charging reception system capable of adjusting the resonance frequency may include a resonance circuit unit including a circuit in which a resonance inductor and a resonance capacitor are connected in parallel; a transmission circuit unit including a transmission inductor and a power supply voltage unit adjacent to the resonance inductor within a threshold distance; a switch unit connected in parallel with the resonance circuit unit and including at least one switch; a rectifier circuit connected in parallel with the switch unit and the resonance circuit unit; and a control unit that controls a phase of transmission current flowing through the transmission inductor generated through the power voltage unit to be same as a phase of current associated with the at least one switch.
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5.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.
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公开(公告)号：US10476159B2
公开(公告)日：2019-11-12
申请号：US15365515
申请日：2016-11-30
Inventor： Je Hoon Yun , Seong Min Kim , Jung Ick Moon , Duk Ju Ahn , Soon Ik Jeon , In Kui Cho
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.
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公开(公告)号：US10199853B2
公开(公告)日：2019-02-05
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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