数字电子技术中555定时器的应用研究  

Application of 555 timer in digital electronic technology

作　　者：李战胜 Li Zhansheng(School of electrical and electronic engineering,Wuhan University of light industry,Wuhan Hubei,430023)

机构地区：[1]湖北武汉轻工大学电气与电子工程学院,湖北武汉430023

出　　处：《电子测试》2020年第22期14-15,81,共3页Electronic Test

基　　金：校级课程思政示范课研究项目“完全学分制下非电类专业电工与电子技术课程的应用实践(XZ2019008)”。

摘　　要：555定时器是一种非常重要的集成电路,既可以应用在模拟电子技术中,又可以应用在数字电子技术中,在数字电子技术中,555定时器主要可以生成单稳态的触发器,双稳态的触发器也就是施密特触发器,除此之外,还可以形成利用自激振荡的原理所构成的多谐振荡器,本文通过对于555定时器在这三个方面的典型应用,具体分析了555定时器的实际应用,并对555定时器在三种典型应用中需要重点掌握的内容进行一定的分析,以期提高数字电路中555定时器的教学质量。555 timer is a very important integrated circuit,which can be used in analog electronic technology and digital electronic technology.In digital electronic technology,555 timer can generate monostable trigger,bistable trigger is Schmidt trigger.In addition,it can form multivibrator based on the principle of self-excited oscillation,Through the typical application of 555 timer in these three aspects,this paper analyzes the practical application of 555 timer,and analyzes the contents that need to be grasped in three typical applications of 555 timer,so as to improve the teaching quality of 555 timer in digital circuit.

关 键 词：单稳态触发器 双稳态触发器 多谐振荡器 

分 类 号：TN492[电子电信—微电子学与固体电子学]