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公开(公告)号：US20190067997A1
公开(公告)日：2019-02-28
申请号：US16173840
申请日：2018-10-29
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
Abstract: A wireless power transmitting apparatus to wirelessly transmit power to a wireless power receiving apparatus, the wireless power transmitting apparatus including an AC power generating unit to generate quasi square-wave AC power having quasi square-wave voltage; and a transmission coil to transmit the quasi square-wave AC power to the wireless power receiving apparatus, wherein an input impedance of the wireless power transmitting apparatus has a maximum value at a fundamental frequency component, and wherein the input impedance of the wireless power transmitting apparatus has a minimum value at a second harmonic frequency component, and is increased as an order of a harmonic frequency component is increased from the second harmonic frequency component.
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公开(公告)号：US20190058356A1
公开(公告)日：2019-02-21
申请号：US16169672
申请日：2018-10-24
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
Abstract: A method of supplying power in a wireless power receiver, can include receiving an AC power via a reception coil in the wireless power receiver; rectifying the AC power to a DC power; entering a charging mode by transferring the DC power to a load when a voltage of the DC power is equal to or greater than a first threshold voltage; maintaining the load in the charging mode when the voltage of the DC power is equal to or greater than a second threshold voltage in a state of the charging mode; and blocking the DC power to the load when the voltage of the DC power transitions from a voltage higher than the second threshold voltage to a lower voltage less than the second threshold voltage.
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公开(公告)号：US20180219428A1
公开(公告)日：2018-08-02
申请号：US15741682
申请日：2016-06-24
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
Abstract: The present invention relates to a method for identifying a wireless power receiver, and apparatuses therefor. The method for identifying a wireless power receiver in a wireless power transmitter may comprise the steps of: detecting an object in a charging area; calculating the amount of impedance variation according to a change in transmission power when the object is detected; and determining, on the basis of the amount of impedance variation, whether or not the object is a normal receiver. Accordingly, the present invention has the advantage of being able to identify a normal receiver even in situations where the communication connection between the wireless power transmitter and the wireless power receiver is not normal.
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公开(公告)号：US20180083492A1
公开(公告)日：2018-03-22
申请号：US15824683
申请日：2017-11-28
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE , Ki Min LEE
Abstract: An apparatus and method for wirelessly transmitting electromagnetic energy are provided. The apparatus includes a power source, a transmission unit, and a measurement unit. The power source supplies a power according to a certain frequency. The transmission unit receives the power to wirelessly transmit the received power through self resonance. The measurement unit measures a phase difference between a voltage and current of the transmission unit. The certain frequency is controlled according to the phase difference. Accordingly, the apparatus and method control only the frequency of the power supply when a resonance frequency is changed by the change of an ambient environment, thus enhancing energy transmission efficiency.
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公开(公告)号：US20160329752A1
公开(公告)日：2016-11-10
申请号：US15110665
申请日：2015-01-07
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
CPC classification number: H02J50/12 , H02J7/025 , H02J50/40 , H02J50/80 , H04B5/0037 , H04B5/0075
Abstract: A wireless power transfer system according to an embodiment of the present invention is a wireless power transfer system having a receiving part for receiving power from a transmitting part, wherein the transmitting part comprises: a power conversion part comprising a full bridge inverter; and a control part for controlling the power conversion part using a pulse width modulation (PWM) control signal, the duty ratio of the PWM control signal being determined by a duty ratio in which the ratio of the magnitude of harmonics to the magnitude of a fundamental frequency among frequency components of the output signal of the power conversion part is a minimum.
Abstract translation: 根据本发明实施例的无线电力传输系统是具有用于从发射部分接收电力的接收部分的无线电力传输系统，其中发射部分包括：电力转换部分，包括全桥逆变器; 以及控制部分，用于使用脉冲宽度调制（PWM）控制信号来控制功率转换部分，PWM控制信号的占空比由占空比确定，其中谐波幅度与基波幅度的比值 功率转换部的输出信号的频率成分之间的频率最小。
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Patent Agency Ranking
公开(公告)号：US20160181870A1
公开(公告)日：2016-06-23
申请号：US14910482
申请日：2014-08-06
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
CPC classification number: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/80
Abstract: A wireless power transmission device for wirelessly transmitting power to a wireless power reception device, according to one embodiment of the present invention, comprises: a first transmission coil for transmitting power to the wireless power reception device through a magnetic field; and a second transmission coil for transmitting power to the wireless power reception device through a magnetic field and arranged on the inner side of the first transmission coil, wherein the wireless power transmission device transmits power to the wireless power reception device through one coil between the first transmission coil and the second transmission coil on the basis of a coupling state between the wireless power transmission device and the wireless power reception device.
Abstract translation: 根据本发明的一个实施例的用于向无线电力接收装置无线发送电力的无线电力传输装置包括：用于通过磁场向无线电力接收装置发送电力的第一发送线圈; 以及第二传输线圈，用于通过磁场向无线电力接收装置发送电力并布置在第一传输线圈的内侧，其中无线电力传输装置通过第一和第二传输线路之间的一个线圈向无线电力接收装置发送电力 基于无线电力传输装置和无线电力接收装置之间的耦合状态，传输线圈和第二传输线圈。
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公开(公告)号：US20160094045A1
公开(公告)日：2016-03-31
申请号：US14831685
申请日：2015-08-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE , Dong Ho YONG
Abstract: A wireless power transmission apparatus is described that comprises a mounting member, an upper transmission coil disposed on the mounting member, and first and second terminals disposed in the mounting member. The upper transmission coil comprises an outer coil part connected to the first terminal and formed in one-turn with respect to a central axis between the first and second terminals, a first inner coil part connected to the outer coil part and formed in a half-turn on a first side of the central axis, a second inner coil part connected to the first inner coil part, formed in a half-turn on a second side of the central axis, a third inner coil part connected to the second inner coil part, formed in a half-turn on the first side of the central axis, and a fourth inner coil part connected to the third inner coil part and the second terminal, formed in a half-turn on the second side of the central axis.
Abstract translation: 描述了一种无线电力传输装置，其包括安装构件，设置在安装构件上的上部传输线圈，以及设置在安装构件中的第一和第二端子。 上部传输线圈包括连接到第一端子并且相对于第一和第二端子之间的中心轴线形成一圈的外部线圈部分，连接到外部线圈部分并形成为半圆形部分的第一内部线圈部分， 打开中心轴的第一侧，连接到第一内部线圈部分的第二内部线圈部分，形成在中心轴线的第二侧上的半匝中;第三内部线圈部分，连接到第二内部线圈部分 形成在中心轴的第一侧上的半匝，以及连接到第三内部线圈部分和第二端子的第四内部线圈部分，其形成在中心轴线的第二侧上的半匝中。
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公开(公告)号：US20150372497A1
公开(公告)日：2015-12-24
申请号：US14763934
申请日：2014-01-23
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE
Abstract: Disclosed is a wireless power transmitting apparatus to wirelessly transmit power to a wireless power receiving apparatus through a transmission resonance coil by using resonance. An AC power generating unit generates quasi square-wave AC power having quasi square-wave voltage. A transmission induction coil transmits the quasi square-wave AC power to the transmission resonance coil through electromagnetic induction.
Abstract translation: 公开了一种通过使用共振通过发送谐振线圈向无线电力接收装置无线发送功率的无线电力发送装置。 AC发电单元产生具有准方波电压的准方波AC电力。 传输感应线圈通过电磁感应将准方波交流电力传输到传输谐振线圈。
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公开(公告)号：US20200067321A1
公开(公告)日：2020-02-27
申请号：US16667349
申请日：2019-10-29
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho BAE , Dong Ho YONG
Abstract: A wireless power transmission apparatus can include a coil unit including a first layer including a first wireless power transmission coil having an asymmetric shape, and a second layer including a second wireless power transmission coil having an asymmetric shape, the first and second wireless power transmission coils being connected in parallel and partially overlapping with each other; and first and second terminals configured to simultaneously apply current to the first and second wireless power transmission coils connected in parallel, in which the first wireless power transmission coil and the second wireless power transmission coil have line symmetry with respect to an imaginary line extending between the first and second terminals and between the first and second layers.
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公开(公告)号：US20190341810A1
公开(公告)日：2019-11-07
申请号：US16514718
申请日：2019-07-17
Applicant: LG Innotek Co., Ltd.
Inventor： Su Ho BAE
Abstract: A wireless power transmission method of a wireless power transmitter can include detecting a first wireless power receiver for charging through a first power transmission scheme; attempting to charge the first wireless power receiver when the first wireless power receiver is detected; proceeding to charge the first wireless power receiver to a first charging power; detecting a second wireless power receiver for charging through a second power transmission scheme when the first wireless power receiver is not detected or when charging the first wireless power receiver fails even after the wireless power transmitter attempted to charge the first wireless power receiver; attempting to charge the second wireless power receiver when the second wireless power receiver is detected; and proceeding to charge the second wireless power receiver to a second charging power.
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