公开(公告)号：US20200076506A1

公开(公告)日：2020-03-05

申请号：US16555605

申请日：2019-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Gyunghwan YUK ,  Byungsang JUNG

IPC: H04B10/114 ,  H04B10/80 ,  H04B10/54 ,  H04B10/69 ,  H02J50/30 ,  H02J50/80

Abstract: An optical wireless power transfer system including a transmission module having a power light source configured to output power light; a communication light source configured to output communication light; a mirror disposed in a light path of the power light source and the communication light source and configured to pass the power light and reflect the communication light; and a transmitting processor configured to modulate the communication light to have a first modulation. The wireless power transfer system also includes a reception module having a photoelectric cell configured to receive the power light from the transmission module and generate power; a retro-reflector configured to retro-reflect the communication light back to the transmission module; and a receiving processor configured to control the retro-reflector to reflect the communication light to have a second modulation based on the power generated by the photoelectric cell.

公开(公告)号：US20190334389A1

公开(公告)日：2019-10-31

申请号：US16475281

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Jeongkyo SEO ,  Jinho YOUN ,  Seonghun LEE

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/90 ,  H02J50/30 ,  G02B27/14 ,  G01V8/14

Abstract: Disclosed in the present specification are a wireless power transmission apparatus, and a method therefor. The wireless power transmission apparatus (Tx) according to one embodiment of the present invention comprises: a laser light source unit; a light output unit for outputting, for wireless charging, laser light generated by the laser light source unit to a light receiving unit of a wireless power receiving apparatus; a foreign object (FO) sensing unit for sensing an FO by utilizing supplementary light; and a control unit for controlling the laser light output when an FO is sensed by the FO sensing unit.

公开(公告)号：US20160241086A1

公开(公告)日：2016-08-18

申请号：US15029741

申请日：2014-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Byungsang JUNG ,  Beomseok CHAE ,  Yongcheol PARK ,  Kyunghwan KIM

IPC: H02J50/12 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J50/80

Abstract: The present specification which relates to a wireless power transmission device and a control method, capable of transmitting and receiving power wirelessly comprises a power supply unit for supplying power to a receiving device to transmit power wirelessly; and a power transmission control unit for, periodically generating a waveform with a particular frequency, measuring an attenuation coefficient of the waveform at each cycle, measuring a variation in the attenuation coefficient at each cycle, and determining the type of an external material. The present invention has a technical feature wherein the power transmission control unit determines whether to transmit power wirelessly to the receiving device on the basis of the type of the external material.

Abstract translation: 能够无线发送和接收电力的无线电力传输装置和控制方法的本说明书包括用于向接收装置供电以供无线发射功率的电源单元; 以及功率传输控制单元，用于周期性地产生具有特定频率的波形，测量每个周期上的波形的衰减系数，测量每个周期的衰减系数的变化，以及确定外部材料的类型。 本发明具有技术特征，其中电力传输控制单元基于外部材料的类型确定是否向接收装置无线发送电力。