全数字音量控制的功率放大器

范文编号:JD780 附原理图及PCB,程序,外文翻译, 范文字数:17978,页数:40

摘  要
近年来随着计算机在社会领域的渗透，单片机的应用正在不断地走向深入，同时带动传统控制检测的日新月益更新。在实时检测和自动控制的单片机应用系统中，单片机往往是作为一个核心部件来使用，仅单片机方面知识是不够的，还应根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。
随着社会的发展、科技的进步以及人们生活水平的逐步提高，各种方便于生活的自动控制系统开始进入了人们的生活，以单片机为核心的功率放大器就是其中之一。同时也标志了自动控制领域成为了数字化时代的一员。它实用性强，功能齐全，技术先进，使人们相信这是科技进步的成果。它更让人类懂得，数字时代的发展将改变人类的生活，将加快科学技术的发展。
本次设计的是音量控制的功率放大器，采用LM4732芯片作为放大器核心。具体要求，采用红外遥控器控制音频功率放大器,本次设计基于完备的软硬件系统，充分发挥了单片机的性能。其优点硬件电路简单，软件功能完善，控制系统可靠，性价比较高等特点，具有一定的使用和参考价值。

关键词　LM4732； LM1602；LM1973；红外接收头； 单片机技术；音量控制的功率放大器

Abstract
With the infiltration in the social field of the computer in recent years, the application of the one-chip computer is moving towards deepening constantly, drive tradition is it measure crescent benefit to upgrade day to control at the same time. In measuring in real time and automatically controlled one-chip computer application system, the one-chip computer often uses as a key part, only one-chip computer respect knowledge is not enough, should also follow the structure of the concrete hardware, and direct against and use the software of target's characteristic to combine concretely, in order to do perfectly.
Progress of with the development of society , science and technology andgradual improvement of people's living standard, various kinds of helpautomatic control system in life begin to enter people's life, audio power amplifer, taking one-chip computer as the core is one of them. Indicate too that the automatic controlled field became a member in digitized era at the same time. Its practicability is strong, multiple functional, modern techniques, make people believe this is an achievement of scientific and technological progress. It lets the mankind understand even more, the development in digital era will change human life, will quicken the development of science and technology.
This design remote control  audio power amplifer, usesLM4732 takes the control core. The concrete request, uses the red remote control audio power amplifer .This design based on the complete software and hardware system, Give full play to the performance of the one-chip computer. Its advantage hardware circuit is simple, the software is with perfect function, the control system is reliable , higher characteristic of the sex price, have certain use and reference value.

Key  words　LM4732; LM1602 ;  LM1973 ; Infrared receiver technology of the one-chip computer；control audio power amplifer

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目录

引言
1  功放的基本知识…………………………………………………………1
2  电路系统方案设计………………………………………………………2
3  电路原理图介绍…………………………………………………………3
4  电路设计制作及调试………………………………………………………………19
5  结论……………………………………………………………………………………23
谢  辞……………………………………………………………………………………24
参考文献…………………………………………………………………………………25
附  录:原理图及程序………………………………………………………………………26

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