课程设计——MINI音响的制作.docVIP

××大学××学院××系 ××课程设计 MINI音响的制作 学生姓名 学 号 所 在 系 专业名称 班 级 指导教师 成 绩 ××大学××学院 二○一一年十二月 摘要：随着电子技术的发展，音箱越来越受到人们的关注和使用。音响是将电信号还原成声音信号的一种装置，还原真实性将作为评价音箱性能的重要标准。有源音箱就是带有功率放大器的音箱系统。把功率放大器与扬声器系统做成一体，可直接与一般的音源（如随声听、CD机、影碟机等）搭配，构成一套完整的音响组合。而迷你音箱就是一款简单的有源音响，本文介绍了构成、功能、及工作原理TDA2822芯片所组成的集成功放电路构成。本身具有电源电压范围宽，静态功耗小，可单电源使用，价格低廉等优点。是一种可普遍用于家庭音响系统、立体声唱机等电子系统中bstract: With the development of electronic technology, sound box by the people more and more attention and use. Audio is reductive into electrical signals will be the voice signal a device, restore authenticity as a performance evaluation of the speakers will be important standard. Active speakers with power amplifier is the speaker system. Put the power amplifier and the speaker system into an organic whole, can be directly with general of the audio source (such as sound with listening, CD, DVD player, etc) is tie-in, form a complete set of sound system. And mini speaker is a simple active acoustics, this paper mainly introduces the mini audio the structure, function, and working principle, which is mainly composed of TDA2822 chip of integrated amplifier circuit to form. Itself has the power supply voltage range wide, static power consumption is small, can a single power use, price is low wait for an advantage. Is a commonly used to family sound system, stereo, and other electronic system CD player, easy to carry, applicability. Key words: Audio, TDA2822, transistors, electrolytic capacitors 目 录 前言…………………………………………………………………………………………1 1. 总体设计方案………………………………………………………………………2 1.1 方案设计…………………………………………………………………………2 1.2 方案论证…………………………………………………………………………3 1.3 音响设计的任务与要求…………………………………………………………3 1.4 音响总体设计……………………………………………………………………3 2. 单元模块设计………………………………………………………………………4 2.1 音响电路设计……………………………………………………………………4 2.1.1 外置电源电路……………………………………………………………4 2.1.2 功放电路…………………………………………………………………5 2.1.3 音源设计…………………………