多谐振荡器的研究与仿真-青岛理工大学.doc

多谐振荡器的研究与仿真
何香玲
(青岛理工大学通信与电子工程学院 266033)
摘要:分析了各种多谐振荡器的电路结构及工作原理,,重点介绍了单稳型多谐振荡器,讨论集成单稳态触发器74121定时元件RC对暂稳态的影响以及单稳型多谐振荡器的应用。
Multisim软件是一种形象化的虚拟仪器电路仿真软件,它能比较快速地模拟、分析、验证所设计电路的性能,在课堂教学中引入EDA技术,使传统教学环节与先进的仿真技术相结合,实现授课的生动性和灵活性,增强学生对基本概念的理解,激发学生的学****兴趣,培养并有效提高学生综合分析、应用及创新能力。
关键字: ,多谐振荡器,555定时器,施密特触发器,环形振荡器
The Simulation and Study of the Multivibrator
He XiangLing
(Institute munications & Electronics ,QingDao Technological University, shandong, 266033,china)
Abstract:The structure and principle of the multivibrator are analysed. The part circuit are imitated by . monostable multivibrator is emphases introduced. The effection of the ponent R、C of the integrated trigger 74121 to temporary stability and the application of the monostable multivibrator are discussed.
Multisim is a simulation sofewave of the suppositional instruments can simulate, snalyse and verify the perfomance of the designed circuit rapidly. The technoloty of the EDA is introduced to teaching, it bine the traditional teaching method with the advanced simulation technology, realize the vividness and flexibility of teaching, enhance the understanding of basic concepts, stimulate students’ interests of study, develop and improve the students’ comprehensive-analyzed, applied and innovated ability effectively.
Keywords:,multivibrator, the 555