频率可调的反馈型正弦波振荡器设计  

Design of Frequency Adjustable Feedback Sine Wave Oscillator

作　　者：裴俊峰 PEI Jun-feng(Communication University of China,Beijing 100024,China)

机构地区：[1]中国传媒大学,北京100024

出　　处：《价值工程》2020年第35期223-225,共3页Value Engineering

摘　　要：在电子线路中,除了要有对各种电信号进行放大的电子线路外,还需要有能在没有任何激励信号情况下产生周期性振荡信号的振荡器。反馈型正弦振荡器是由主网络和反馈网络组成的一个闭合回路,文章在固定频率正弦波振荡器的基础上,进行了电路的改进和元器件的选择,最终设计出可自激振荡且频率变化范围为3.94-5.04MHz的LC高频正弦波振荡器,并用Multisim软件对振荡器电路进行了仿真验证。In electronic circuits,in addition to the electronic circuits that amplify various electrical signals,there is also a need for oscillators that can produce periodic oscillation signals without any excitation signals.The feedback oscillator is a closed loop composed of the main network and the feedback network.On the basis of the fixed frequency sinusoidal oscillator,the circuit is improved and the components are selected.Finally,a LC high frequency sinusoidal oscillator with self-excited oscillation and frequency variation range of 3.94-5.04MHz is designed and simulated by Multisim software oscillator.

关 键 词：正弦波振荡器 频率可调 自激振荡 高频 

分 类 号：TN752.1[电子电信—电路与系统]