手机无线充电系统的研究

发布时间：2018-06-01 07:48

本文选题：无线充电 + 电磁感应　；参考：《安徽工业大学》2017年硕士论文

【摘要】：随着电子信息时代的来临,智能手机变得越来越大众化,屏幕大且功能多样化。然而,手机电池的电量成为了消费者关心的一个问题,还有充电时各种各样繁琐的数据线。手机接口也是有进水或者进灰尘的风险,所以有必要去研究一种方便可靠性高的充电方法。电磁感应技术可以通过空间上的磁场耦合将电能从发射端传递给接收端,然后给手机电池进行充电。本文通过对该技术的结构原理、电路设计、线圈耦合的研究,设计出基于电磁感应原理的手机无线充电系统。首先分析了手机无线充电的理论和结构,包括常见的无线电能传输方式,系统的基本框架,对手机充电发射端和接收端进行了介绍。然后,分析了手机电池的特征和充电时影响充电效率的一些因素,并对其中参数进行了分析。最后设计手机充电电路,选出了适合于发射端和接收端的控制芯片,设计了辅助电源,发射端的振荡电路,对耦合线圈进行了详细分析,设计出适合手机充电系统的线圈。为了证明系统的性能,结合实验室的条件,搭建了一个手机无线充电的实验系统。在介绍了一些关于测试的方法之后,对发射端和接收端的模块进行了一系列的指标测试,从而验证了系统的可行性,本文所研究的内容对手机无线充电的推广有着促进的作用,可以为以后手机无线充电设计研究提供一些参考。最后,展望无线充电的发展前景,并对本文的重要内容进行总结。
[Abstract]:With the advent of the electronic information age, smart phones are becoming more and more popular, with large screens and diversified functions. However, cell phone battery power has become a concern for consumers, as well as a variety of rechargeable data lines. Mobile phone interface is also a risk of water or dust, so it is necessary to study a convenient and reliable charging method. Electromagnetic induction technology can transmit electric energy from the transmitter to the receiver through magnetic field coupling in space, and then charge the cell phone battery. In this paper, a wireless charging system based on electromagnetic induction is designed by studying the structure principle, circuit design and coil coupling of the technology. Firstly, the theory and structure of mobile phone wireless charging are analyzed, including the common radio energy transmission mode, the basic framework of the system, and the introduction of the mobile phone charging transmitter and receiver. Then, the characteristics of mobile phone battery and some factors affecting charging efficiency are analyzed, and the parameters are analyzed. Finally, the mobile phone charging circuit is designed, the control chip suitable for the transmitter and receiver is selected, the auxiliary power supply and the oscillation circuit of the transmitter are designed, the coupling coil is analyzed in detail, and the coil suitable for the mobile phone charging system is designed. In order to prove the performance of the system, an experimental system for wireless charging of mobile phone is built according to the conditions of the laboratory. After introducing some testing methods, a series of index tests on the modules of the transmitter and receiver are carried out to verify the feasibility of the system. The contents studied in this paper can promote the promotion of wireless charging of mobile phones. Can provide some reference for the future mobile phone wireless charging design research. Finally, the development prospect of wireless charging is prospected, and the important contents of this paper are summarized.
【学位授予单位】：安徽工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM910.6

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