小功率无线充电器设计

三江学院

本科生毕业设计（论文）

题目小功率无线充电器设计

电气与自动化工程学院（系）电气工程及其自动化专业学生姓名学号

指导教师职称

指导教师工作单位电气与自动化工程学院

起讫日期

摘要

无线充电器是指采用电磁感应原理来充电的器材，原理很像变压器。这个系统有两个端口，一个是发射端，一个是接受端，发射端和接受端都是由线圈构成，发射端线圈和电路相连可以发射电磁波，接收端接收电磁波后连接到内部电路产生直流电压。因为这种技术还没有完全成熟很多厂商都在研究这个技术，他们对这种技术都有自己的叫法，例如无线充电、感应电力、不接触充电、无接点充电都是指这种的技术，供电与受电端交互作用就是电磁感应，所以无线充电技术是广义的词没有绝对的参数设定。无线充电技术有很多好处，例如非常方便，通用，安全，很多电气设备都可以使用一种充电基站，相信在将来，所有的设备都会用无线充电。这给人们带来的意义和影响非常重大。这篇文章讲解一种以电磁感应原理为基础在运用一些无线充电控制芯片实现电能传输的无线充电器装置。对电磁感应原理，系统电路和控制芯片进行了重要分析。

关键词：电磁感应；无线充电技术；无线充电控制芯片

ABSTRACT

Wireless charger is the principle of electromagnetic induction to charge the equipment,principles like transformers.This system has two ports,one transmitter and one receiving end,the transmitting end and the receiving end is constituted by a coil, the transmitter coil and the circuit connected to the electromagnetic wave can be transmitted,the receiving side receives an electromagnetic wave generating circuit connected to a DC voltage to the internal.Because this technology is not yet fully mature,many manufacturers are looking at this technology,they have their own name for this technology,such as wireless charging,inductive electricity,do not touch the charge,non-contact charging all refer to this technology,interaction with the receiving end power is electromagnetic induction,the wireless charging technology is a broad term there is no absolute parameters.Wireless charging technology has many advantages,such as very convenient,universal,safe,many electrical devices can use a rechargeable base,I believe that in the future,all devices will use wireless charging. This gave rise to a very substantial significance and impact.This article explains a kind of electromagnetic induction principle is based on the use of some wireless charging control chip wireless power transmission device charger.On the principle of electromagnetic induction,circuits and control systems important chip analysis.

Key words:Electromagnetic induction principle;Wireless charging technology;

Wireless charging control chip；

目录

第一章绪论 (1)

1.1无线充电技术的概论 (1)

1.1.1电磁感应技术 (1)

1.1.2电磁共振技术 (1)

1.1.3无线电波技术 (1)

1.2无线充电研究现状 (2)

1.3无线充电研究的意义 (3)

第二章电磁感应原理 (4)

2.1电磁感应发现 (4)

2.2电磁感应基本概念 (5)

2.2.1磁通量 (5)

2.2.2电磁感应现象 (5)

2.2.3能量的转化 (6)

2.2.4感应电动势 (6)

2.3计算公式 (6)

2.4电磁感应意义 (6)

第三章电路设计 (8)

3.1结构设计 (8)

3.2具体电路设计 (9)

3.2.1无线充电器主电路设计 (9)

3.2.2控制芯片的简介 (10)

3.2.3无线充电器分电路设计 (12)

第四章测试结果与分析 (16)

4.1结果分析 (16)

结束语 (19)

致谢 (20)

参考文献 (21)