Invention Grant
- Patent Title: Wireless power transmission device and method
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Application No.: US16468618Application Date: 2017-08-03
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Publication No.: US10992186B2Publication Date: 2021-04-27
- Inventor: Kyunghwan Kim , Jinho Youn , Seonghun Lee
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman, Kang & Waimey
- Priority: KR10-2016-0168589 20161212
- International Application: PCT/KR2017/008388 WO 20170803
- International Announcement: WO2018/110790 WO 20180621
- Main IPC: H02J50/30
- IPC: H02J50/30 ; H02J50/80 ; G02B3/00 ; H02J7/02

Abstract:
The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point.
Public/Granted literature
- US20200091774A1 WIRELESS POWER TRANSMISSION DEVICE AND METHOD Public/Granted day:2020-03-19
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