摘要本文根据传统有线充电的方式不能满足水下工作、矿井、油田供电以及体内医疗 设备充电等问题，提出一种电磁耦合能量无线传输的方案。电磁耦合能量无线传输电 路的设计主要涉及到以下关键技术：谐振耦合技术、整流滤波技术、高频逆变技术、 稳压技术、小信号的功率放大技术。83396

为解决以上技术难点,电磁耦合能量传输电路的主要研究工作如下：

（1）选择电容三点式振荡电路产生的正弦波作为发射信号，并设计当振荡频率 为 2MHz 时电路中的电容值和电感值；（2）设计小信号功率放大电路，将振荡电路产 生的小功率信号进行放大；（3）功放电路的供电源设计；（4）能量发送和能量接收电 路设计；（5）整流电路的设计，将能量接收电路接收到的交流电进行整流；（6）稳压 电路的设计；（7）整个系统的 PCB 设计和系统的测试。

本文完成了一种电磁耦合能量无线传输电路的设计，并通过在接收端点亮 LED

的方式证明了接收端可以接收到微弱的能量。

毕业论文关键词：电磁谐振耦合；无线能量传输；无线电能

Abstract In this paper, We put forward a kind of electromagnetic coupling energy wireless transmission circuit, because the cable charging circuit can't meet our requirements in many cases, such as underwater power supply, mine or oil field power supply, and charging for medical devices in the body。 The design of electromagnetic coupling energy transmission circuit consists of the following techniques: Resonance coupling technology, Rectifying filtering technology, high frequency inverter, voltage regulator, small signal of power amplifier。

In order to solve the above technical difficulties, the work of electromagnetic coupling energy transmission circuit is as follows: First, oscillator circuit of three-point capacitance is chosen as the oscillation signal circuit and making oscillation signal as transmitting signal。 Calculating the value of the capacitance and inductance in the circuit while the oscillation frequency is equal to 2MHz。 The second is designing a small signal power amplifier circuit in order to enlarge the small power of the oscillation circuit to produce information。 The third is designing a power source of amplification circuit。 The fourth is designing energy sending and energy receiving circuit design。 The fifth is design a rectifier circuit in order to make alternating current received from receiving circuit into direct current。 The sixth is the design of the voltage regulator circuit。 The last is the test of system。

This paper designs a wireless transmission circuit of electromagnetic coupling   energy。

Through light the LED proves the receiver can receive weak energy。

Keywords: Magnetic resonance coupling; wireless energy transmission; wireless power

目录

第一章  绪论 1

1。1  背景和意义 1

1。2  电磁耦合能量传输技术的研究现状 2

1。2。1  国外研究现状 2

1。2。2  国内研究现状 3

1。3  本文的研究意义和主要内容 3

第二章  电磁耦合能量传输 5

2。1  无线电能传输方式 5

2。2  电磁耦合能量传输系统 6

第三章  电磁耦合能量收集电路实现 9

3。1  电磁耦合能量传输系统框架