【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。更多还原

【Abstract】 Auto-frequency Tracking phase locked loop circuit had been analyzed and simulated by Multisim 10. 1software. By changing resistance to adjust oscillation waveform’s pulse width,and changing the integral circuit’s capacitance to find optimal locked phase range,and changing capacitance to adjust waveform synchronization,and changing signal source’s frequency the authors tried to find synchronization range,thus realized frequency tracking. The simulation results showed that simulation technology by using Multisim 10. 1 could make some abstract and boring theoretical teaching become concretely and lively,thus facilitated to improve teaching quality of the course of high frequency electronic circuit.更多还原