基于Multisim10.1频率自动跟踪锁相环电路的仿真分析  

Simulation of Phase Locked Loop Circuit with Frequency Automatic Tracking Based on Multisim 10.1

作　　者：侯卫周[1] 向兵[1] 

机构地区：[1]河南大学物理与电子学院,河南开封475004

出　　处：《实验室研究与探索》2014年第6期86-89,共4页Research and Exploration In Laboratory

基　　金：国家青年科学基金项目(11103002)

摘　　要：利用Multisim10.1软件对高频电路频率自动跟踪锁相环进行了仿真分析;通过改变电阻大小调整振荡波形的脉冲宽度,调整积分电路的电容大小能找出最佳锁相范围的数值大小,改变电容大小调整波形是否同步和改变信源的频率找同步范围,从而实现频率自动追踪。仿真结果与实际理论相吻合,虚拟仿真实例的结论证明了将Multisim10.1合理引入到高频电路实验教学后,能将一些抽象、枯燥的电子线路理论教学变得具体和生动,有利于提高电子线路理论课的教学质量。Auto-frequency Tracking phase locked loop cireuit had been analyzed and simulated by Multisim 10. 1 software. By changing resislance to adjust oscillation wavefonn＇ s pulse width, and changing the integral circuit＇ s calmcilance In find optimal locked phase range, and changing capacitance to adjust wavefnrm synchronization, and changing signal soure＇ s frequenvy the authors tried to find synchronization range, thus realized frequency tracking. The simulaliml resuhs showed that simulation technology by using Muhisim 10. 1 could make some abstract and Imring theoretical teaching beeome concretely and lively, thus facilitated to improve leaching quality of the course of high frequency eleclrouic circuit.

关 键 词：频率自动跟踪 高频电路 锁相环 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]