毕业设计-----函数信号发生器

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1、毕业论文摘要本系统以ICL8038集成块为核心器件，制作一种函数信号发生器，制作成本较低。适合学生学习电子技术测量使用。ICL8038是一种具有多种波形输出的精密振荡集成电路，只需要个别的外部元件就能产生从0.001Hz～30KHz的低失真正弦波、三角波、矩形波等脉冲信号。输出波形的频率和占空比还可以由电流或电阻控制。另外由于该芯片具有调制信号输入端，所以可以用来对低频信号进行频率调制。函数信号发生器根据用途不同，有产生三种或多种波形的函数发生器，其电路中使用的器件可以是分离器件，也可以是集成器件，产生方波、正弦波、三角波的方案有多种，

2、如先产生正弦波，根据周期性的非正弦波与正弦波所呈的某种确定的函数关系，再通过整形电路将正弦波转化为方波，经过积分电路后将其变为三角波。也可以先产生三角波-方波，再将三角波或方波转化为正弦波。随着电子技术的快速发展，新材料新器件层出不穷，开发新款式函数信号发生器，器件的可选择性大幅增加，例如ICL8038就是一种技术上很成熟的可以产生正弦波、方波、三角波的主芯片。所以，可选择的方案多种多样，技术上是可行的。关键词：ICL8038，波形，原理图，常用接法34毕业论文目录摘要··································

3、·····························1目录·····························································2第一章项目任务·················································31.1项目建····················································31.2项目可行性研究··············································3第二章方

4、案选择··················································42.1[方案一]··················································42.2[方案二]···················································4第三章基本原理··················································53.1函数发生器的组成·····························

5、···············63.2方波发生器　···············································63.334毕业论文三角波发生器　··············································73.4正弦波发生器··············································9第四章稳压电源················································104.1直流稳压电源设计思路·········

6、····························104.2直流稳压电源原理·········································114.3设计方法简介··············································12第五章振荡电路················································155.1RC振荡器的设计·········································15第六章功率放大器···········

7、·····································176.1OTL功率放大器··········································17第七章系统工作原理与分析·········································1934毕业论文7.1ICL8038芯片简介··········································197.2ICL8038的应用··········································197

8、.3ICL8038原理简介··········································197.4电路分析·······································