函数信号发生器设计

论文编号:TX408  论文字数:13153,页数:30 附开题报告

摘  要

 函数信号发生器是指能自动产生方波、正弦波、三角波等电压波形的仪器, 它在实验及科学研究中得到了广泛应用。本课题的任务是设计一个函数信号发生器，使其能自动产生方波、三角波以及正弦波。本论文主要针对函数信号发生器进行论述，它基本可分为四部分，第一部分主要是对设计中应用到的一些模电数电方面的知识如电压比较器，积分器，差分放大器等进行简单介绍；第二部分的主要内容是提出了以下两种设计方案：第一种方案是基于单片集成芯片MAX038函数信号发生器的设计，第二种方案是基于晶体管、运放IC等函数信号发生器的设计，并且对这两种方案的优点和缺点进行分析比较，最后确定采用第二种方案来完成函数信号发生器的设计。第三部分就具体介绍了我的设计方案—基于晶体管、运放IC等函数信号发生器的设计，它是本文的核心，该部分讲述了性能指标、原理框图、以及如何通过参数计算来确定设计电路等几个方面的内容；文章第四部分就主要介绍了调试安装的方法，并对设计中出现的故障进行了简要分析。

 关键字：函数信号发生器; 差分放大器; 积分器

Abstract

 The function signal generating device is refers can automatically have voltage waveform the and so on the square-wave, sine wave, triangle wave instrument, it obtained the widespread application in the experiment and the scientific research. This topic duty designs a function signal generating device, enables its automatically to have the square-wave, the triangle wave as well as the sine wave. The present paper mainly aims at the function signal generating device to carry on the elaboration, it is basic may divide into four parts, the first part mainly is to some mold electricity number electricity aspects knowledge like voltage comparators which designs applies, the integrator, the differential amplifier and so on carries on the simple introduction; The second part of main content was proposed following two kind of design proposal: The first kind of plan is based on the monolithic integrated chip MAX038 function signal generating device design, the second kind of plan is based on the transistor, transports puts function signal generating device the and so on the IC design, and carries on the analysis comparison to these two kind of plans merit and the shortcoming, finally determined uses the second kind of plan to complete the function signal generating device the design. The third part specifically introduced my design proposal - based on the transistor, transports puts function signal generating device the and so on the IC design, it is this article core, did this part narrate the performance index, the functional block diagram, how as well as calculates through the parameter determines the design electric circuit and so on several aspects the content; The article fourth part mainly introduced the debugging installment method, and to designed the breakdown which appeared to carry on the brief analysis.
 
 Key words: Function signal generating device  Differential amplifier  Integrator

目  录

摘要 I
Abstract II
绪论 1
1  函数信号发生器相关知识与基本原理 2
1.1  电压比较器 2
1.1.1  简单电压比较器 2
1.1.2  滞回比较器 3
1.1.3  窗口比较器 3
1.2  方波发生器 4
1.3  积分器 5
1.4  差分放大器 6
1.4.1  传输特性 6
1.4.2  共模特性 7
2  函数发生器设计方案 9
2.1  基于单片集成芯片MAX038函数信号发生器的设计 9
2.2  基于晶体管、运放IC等函数信号发生器的设计 10
2.2.1  方波→三角波产生电路 10
2.2.2  三角波→正弦波变换电路 11
3  基于晶体管与运放IC函数信号发生器设计 14
3.1  性能指标 14
3.2  参数计算 14
3.3  原理框图 15
3.4  设计电路与工作原理 15
3.4.1  设计所用元器件 15
3.4.2  电路及工作原理 16
3.5  相关芯片介绍 17
3.5.1  uA747双电源通用型双运放 17
3.5.2  LM78XX与LM79XX 18
4  安装与调试 20
4.1  设计与调试中使用的主要仪器和设备 20
4.2  设计的装调 20
4.2.1  方波→三角波发生器的装调 20
4.2.2  三角波→正弦波变换电路的装调 20
4.2.3  自制电源的装调 21
4.3  故障分析 22
4.3.1  方波—三角波发生器故障 22
4.3.2  三角波—正弦波发生器故障 22
4.3.3  电源部分故障 22
结论 23
致谢 25
参考文献 26

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