低功率激光在手机无线充电上的应用  

Application of Low Power Laser in Mobile Phone Wireless Charging

作　　者：方思远 方东 FANG Si-Yuan;FANG Dong(School of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan Anhui232000,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232000

出　　处：《机电产品开发与创新》2021年第5期11-13,共3页Development & Innovation of Machinery & Electrical Products

基　　金：大学生创新创业训练计划项目(201910361058)。

摘　　要：随着智能手机和其它移动设备的普及,无线接入已经成为人们生活的一部分。无线通信技术使移动设备摆脱了束缚,但远距离无线电力传输仍有待改进。提出一种利用激光输能来解决手机无线充电的设想。使用低功率激光器输能时,能量衰减较小。通过红外光源与反光镜组合进行反馈控制转轴方向,光纤准直器将激光投射到接收器,再通过光伏电池将光能转回电能,最后由能量管理模块整流、滤波后给手机供电,即可实现激光远程无线充电。With the popularity of smart phones and other mobile devices,wireless access has become a part of people's life.Wireless communication technology has freed mobile devices from bondage,but long-distance wireless power transmission needs to be improved.This paper presents an idea of using laser energy transmission to solve wireless charging of mobile phones.The energy attenuation is small when low power laser is used for energy transmission.Through the combination of the infrared light source and the reflector,the direction of the rotating shaft is controlled by feedback.The optical fiber collimator projects the laser to the receiver,and then the light energy is converted to electric energy through the photovoltaic cell.Finally,the energy management module rectifies and filters the light energy to the mobile phone,and the remote wireless laser charging can be realized.

关 键 词：激光输能 无线充电 能量转化效率 低功率激光器 光伏电池 

分 类 号：TN2[电子电信—物理电子学]