rc振荡电路实验报告.docx

rc振荡电路实验报告※※※※※※※※※※※※ XX级※模拟电子技术课程设计※※※※※※※※※※※ RC振荡电路设计姓名学号院、系、部班号完成时间摘要 RC振荡电路一般由放大电路,反馈网络,选频网络和稳幅环节四个部分组成。它适用于低频振荡,一般产生几赫~几百千赫的低频信号。RC振荡电路中,放大电路和反馈网络构成正反馈系统,共同满足正弦波振荡条件。选频网络的作用是实现单一频率的正弦波振荡。另外,有了稳幅环节就可以使振荡幅度达到稳定。本设计主要采用文氏电桥振荡电路连接示波器构成正弦波发生器。通过按RC振荡电路组成部分计算参数设计(来自:写论文网:rc振荡电路实验报告)仿真电路,焊接电路板,实现振荡频率为160Hz的正弦波发生器实物。 RC振荡电路有许多种形式,常用的RC振荡电路有文氏电桥振荡电路,移相式振荡电路和双T型选频网络振荡电路等。但除了文氏电桥振荡电路,其它RC振荡电路的应用并不广泛。本设计按指标要求选用具有成本低、性能指标高、可靠、使用简单、安装调试方便等优点的文氏电桥振荡电路设计频率为160Hz的正弦波发生器。关键词:RC振荡电路文氏电桥振荡电路稳幅正弦波发生器目录第1章设计任务与要求··················································································································4第2章方案与论证·························································································································4RC振荡电路组成··················································································································4放大电路································································································································2反馈网络································································································································2选频网络································································································································2稳幅环节································································································································3正弦波发生器························································································································3第3章单元电路设计与参数计算···································································································3振荡频率································································································································3起振条件································································································································3选择集成运放放大器·················································································