红外线遥控直流稳压电源的方案.doc

红外线遥控直流稳压电源的方案

摘  要
红外线遥控是目前使用最广泛的一种通信和遥控手段。由于红外遥控装置具有体积小、功耗低、功能强、成本低等特点，因而许多电器装置上也纷纷采用红外线遥控。
电源作为电子产品的能量供应部分，在电路中起着举足轻重的作用，好的电源能够使电路的作用发挥得更出色。
设计中介绍了一种利用红外线在传输上的优点来设计红外线遥控直流稳压电源的方案。系统总体上由两部分构成，即红外线遥控部分和电源部分。遥控部分实现的是对输出电压等级的控制，这是主体。而不同输出电压可以满足不同用电装置的工作需求。文章着重对遥控部分和电源部分的原理做了具体的分析，并对总体实现方案作了详细的介绍和说明。
在设计中利用红外线遥控集成电路BA5104作为红外发射部分，BA5204作为红外接收译码专用集成电路。此集成电路的特点是外围元件少、工作稳定可靠、不需调试、通用性好。这就很好地实现了电源稳定性、可靠性、精确性、高效率、小型化和轻量化的要求。

关键字：红外遥控，红外发射，红外接收，电源

Abstract
Infrared ray remote control is one kind of most popular communication and remote control means at present. Because the infrared remote control device has small, low power dissipation , strong function, low grade cost characteristics, therefore a lot of electric apparatus devices adopt infrared ray remote control one after another.
The power supplies some as the energy of the electronic product, and play a decisive role in holding the balance in the circuit, the good power can make the function of the circuit play well.
The text has introduced a kind of scheme of utilizing the infrared ray to design the remote control direct current steady voltage plug of infrared ray in the advantage on of transmitting. The system is formed by two parts generally, namely infrared ray remote control part and power part. What the remote control part realized is to the control which outputs the grade of voltage, this is a subject of the text. And different output voltage can meet different power consuming working demand of device. The text has focused on and made concrete analysis to the principle of the remote control part, and has done detailed introduction and explanation. to the realizing scheme.
Utilize remote control integrated circuit BA5104 of infrared ray as some of infrared emission in this design, and BA5204 is accepted as the special-purpose integrated circuit of receptor and decoder. Integrated circuit has the characteristic that it needs few peripheral components, works steady and reliably , does not need debugging ,and  has  kind commonality . This has well realized the stability of the power , demand for dependability , accuracy , miniaturized and light quantization with high efficiency.

Keywords：Infrared remote control，Infrared emission，Infrared receptor，      Power

目   录
摘  要 I
ABSTRACT II
1 绪言 1
1.1 课题背景 1
1.2 电源技术的发展 1
1.3 课题研究的目的和意义 2
2 系统设计方案的研究 4
2.1 系统的实现原理 4
2.2 各种遥控系统的比较 4
3 红外遥控的基础知识 6
4 红外遥控系统 7
4.1 单通道遥控开关电路 7
4.2 单通道步进式遥控电路 7
4.3 多通道红外遥控电路 8
4.4 红外遥控信号发射器及编码 10
4.5 红外遥控信号接收器及其解码 11
4.5.1  硬件解码电路 12
4.5.2  软件解码方案 13
4.5.3  未知信号格式遥控器信号码的识别 14
5  电源电路 16
5.1电路组成 16
5.1.1  电路组成及各部分电路的作用 16
5.1.2  变压器降压电路 17
5.1.3  降压电路分析说明 18
5.2 整流电路分析 18
5.2.1  整流电路的种类 18
5.2.2  单相半波整流电路 19
5.2.3  单相全波整流电路 20
5.2.4  单相桥式整流电路 20
5.2.5  单相半波、全波、桥式整流电路各自的特点 21
5.3 电源滤波电路 22
5.3.1 电路种类 22
5.3.2  电容滤波原理 22
5.3.3  Л型RC滤波电路 23
5.3.4  Л型LC滤波电路 24
5.3.5  电子滤波器电路 24
5.4 稳压电路 25
5.4.1  稳压电路的种类 25
5.4.2  稳压电路分析说明 26
6  总体电路部分 27
6.1 整体电路的设计 27
6.2 通用红外线遥控电路 28
7  总结与展望 31
致谢 32
参考文献 33