一种可调的简易函数发生器设计  

Design of an adjustable simple signal function generator

作　　者：徐知博 郝国成[1] XU Zhi-bo;HAO Guo-cheng(School of Mechanical Engineering and Electronic Information, China University of Geosciences, Wu- han 430074, Chin)

机构地区：[1]中国地质大学机械与电子信息学院通信工程系,湖北武汉430074

出　　处：《实验室科学》2017年第6期16-18,21,共4页Laboratory Science

摘　　要：函数发生器能产生多种波形,可广泛应用于实验教学、科学研究以及测试分析等领域,因此,受到广泛的关注。传统实验教学中,采用分立的元件,利用比较器、积分器和差分放大器搭建的函数发生器,虽然可以产生方波、三角波和正弦波,但是,存在频率不高、工作不稳定及不易调节等缺点。本设计基于ICL8038芯片搭建了可产生方波、三角波和正弦波的函数发生器,实现了频率、占空比、失真度以及幅值可调等功能,电路元器件少,性能稳定。Function generators which can produce a variety of waveforms,so that can be widely used in many areas,such as：experimental teaching,scientific research and test analysis,therefore,received wide attention.In the traditional experimental teaching,using the discrete components,the function generator can be built by comparators,integrators and differential amplifiers,but its frequency is not high enough,the work stability is not good and parameters are difficult to adjust.Based on the ICL8038 chip,a function generator that can produce square wave,triangular wave and sine wave is built in this paper.More importantly,its frequency,duty ratio,distortion and amplitude can be easily adjusted.The function generator has less circuit components and has stable performance.

关 键 词：ICL8038芯片 方波 正弦波 三角波 函数发生器 

分 类 号：TN830[电子电信—信息与通信工程]