彩灯控制器毕业论文.doc

彩灯控制器毕业论文


摘 要

19世纪兴起的数字电路以其先天的便捷、稳定的优点在现代电子技术电路中占有越来越重要的地位。随着人们生活环境的不断改善和美化，在许多场合可以看到彩色流水灯。LED彩灯由于其丰富的灯光色彩，低廉的造价以及控制简单等特点而得到了广泛的应用，用彩灯来装饰街道和城市建筑物已经成为一种时尚。但目前市场上各式样的LED彩灯控制器大多数用全硬件电路实现，电路结构复杂、功能单一，这样一旦制作成品只能按照固定的模式闪亮，不能根据不同场合、不同时间段的需要来调节亮灯时间和变化。
本实验设计中，音频变色灯由运算放大器UA741、LED电平指示器LM3914、十进制计数/分配器CD4017组成,通过音频信号可以自动对彩灯或霓虹灯及节日灯的控制。音频变色等控制电路可在音频信号的驱动下，控制三基色，从而达到彩灯泡发出千姿百态的色彩变化，其变化规律与音频信号的频率及电平大小相对应。在这样灯光可实现跳变、缓变、定色、组图、照明五种形式，适用于家庭、宾馆、舞厅、剧院、广告等领域，用途广泛，丰富现代社会生活。

关键字：音频变色灯      彩灯           CD4017     音频信号

Abstract
In the 19th century by the rise of digital circuit, stability of congenital advantage in the modern electronic technology plays more and more important in the circuit. As people living environment and landscaping, continuous improvement on many occasions can see color water lamp. LED lights because of its rich light color, low cost and simple control characteristics and a wide range of applications, with lights decorating streets and city building has become a kind of fashion. But on the market at present each style LED lights controller hardware circuit realized with the most complex structure, function, circuit, so when making a product with only fixed pattern according to different situations, shiny, different period of time to adjust to changes and light.This experimental design, audio amplifier UA741 discoloration of light, LED by LM3914, decimal indicator level CD4017 distributor/counting, through the audio signal can be on holiday lamp lights or neon and control. Audio control circuit can discoloration of audio driver, control, thus achieved the effect of various issued the variation color changes, with the audio signal frequency and size of corresponding level. In this light can realize jumping, slowly, color, atlas, lighting five forms, applicable to family, hotel, ballroom, theatres, advertising and other fields, versatility, rich life in a modern society.
Key words: audio color lamp lights CD4017 audio signal
目录
1.前言……………………………………………………………………1
2.电路组成以及各个部分工作原理……………………………………2
2.1音频变色灯控制电路组成..................................2
2.2电路工作原理………………………………………………………2
3.音频变色灯控制器的硬件组成介绍…………………………………3
3.1 实验元器件清单........................................3
3.2各元器件原理以及功能分析说明……………………………………3
3.2.1 运算放大器和uA741的原理功能以及应用..................3
3.2.2条图显示器和LM3914集成电路的原理、功能以及应用.........7
3.2.3 CD4017的原理，功能以及应用…………………………………11
3.2.4 电阻器..........................................13
3.2.5 电容器..........................................15
3.2.6 二极管..........................................20
3.2.7 固定三端稳压器和其他元件和材料....................23
4.焊接和调试电路……………………………………………………23
4.1   组装成品焊接.....................................23
4.2   电路的调试.......................................26
5.总结语………………………………………………………………27
参考文献………………………………………………………………29
致谢……………………………………………………………………30