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公开(公告)号：US10693326B2
公开(公告)日：2020-06-23
申请号：US15986429
申请日：2018-05-22
发明人： Seong-Min Kim , Sang-Won Kim , Jung Ick Moon , In Kui Cho , Je Hoon Yun , Dong Won Jang
IPC分类号： H02J50/12
摘要： 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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公开(公告)号：US11862382B2
公开(公告)日：2024-01-02
申请号：US18078577
申请日：2022-12-09
发明人： Jung Ick Moon , Gwangzeen Ko , Sang-Won Kim , Seong-Min Kim , In Kui Cho
CPC分类号： H01F27/2823 , H01F27/06 , H02J50/005 , H02J50/10
摘要： Provided is a spiral coil and wireless power transmission and reception circuit including the spiral coil. The spiral coil includes a conducting wire forming one or more coil turns, and a height of one side of the conducting wire in a direction of a central portion of the spiral coil and a height of another side of the conducting wire in an opposite direction to the central portion of the spiral coil in each of the coil turns are different from each other and the conducting wire includes at least one slot formed by an empty space between the one side and the other side, and an upper surface positioned above the one side and the other side and connecting the one side and the other side.
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公开(公告)号：US11502555B2
公开(公告)日：2022-11-15
申请号：US17246244
申请日：2021-04-30
发明人： 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
摘要： 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.
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14.发明授权公开(公告)号：US10826328B2
公开(公告)日：2020-11-03
申请号：US16163359
申请日：2018-10-17
发明人： Sang Han Lee , In Kui Cho , Sang-Won Kim , Seong-Min Kim , Jung Ick Moon , Ho Jin Lee
摘要： 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.
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公开(公告)号：US20190058349A1
公开(公告)日：2019-02-21
申请号：US15909302
申请日：2018-03-01
发明人： Sang-Won Kim , Jung Ick Moon , Seong-Min Kim , In Kui Cho , Je Hoon Yun , Dong Won Jang
摘要： 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.
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公开(公告)号：US10067908B2
公开(公告)日：2018-09-04
申请号：US15595094
申请日：2017-05-15
发明人： Chung Sup Kim , Kanghee Kim , Sang-Won Kim , Ki Cheol Tae , Heung Yong Kang , Yong-Seok Choi
摘要： An apparatus for calculating a reception time of a wireless communication signal is disclosed. The apparatus includes a downconverted signal generator configured to generate a downconverted signal, a baseband signal, by downconverting a frequency of a signal received from a transmission source, a modulated signal generator configured to generate a modulated signal by multiplying the downconverted signal by a randomly generated reference signal, a time difference calculator configured to calculate a time difference between the modulated signal and the reference signal by cross-correlating the modulated signal and the reference signal, and a reception time calculator configured to calculate a reception time of the signal received from the transmission source using a point in time at which the reference signal is generated and the time difference between the modulated signal and the reference signal.
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