当前位置>主页 > 期刊在线 > 电子工程 >

电子工程23年4期

基于Multisim的电容三点式振荡电路设计
吴文英
(广东省机械技师学院,广东 广州 510450)

摘  要:电容三点式振荡电路在高频振荡电路中应用广泛,该电路结构复杂,元器件较多,信号传输路径不直观,学生在学习时难以理解。文章设计了一种典型电容三点式振荡电路,对该电路进行静态工作点计算与分析,使电路工作在放大状态。再通过 Multisim 软件进行仿真验证与分析,该电路不需要电源开关增加扰动就能起振,振荡频率与理论计算相符。该电路对硬件要求低,易于操作,可以促进学生理解振荡电路的结构,参数设置的依据和方法。


关键词:三点式振荡;Multisim;振荡频率



DOI:10.19850/j.cnki.2096-4706.2023.04.016


中图分类号:TN32                                           文献标识码:A                                     文章编号:2096-4706(2023)04-0061-03


Design of Capacitance Three-Point Oscillation Circuit Based on Multisim

WU Wenying

(Guangdong Machinery Technician College, Guangzhou 510450, China)

Abstract: The capacitance three-point oscillation circuit is widely used in high-frequency oscillation circuit. The circuit has complex structure, many components and unintuitive signal transmission path, which is difficult for students to understand when learning. In this paper, a typical capacitance three-point oscillation circuit is designed. The static operating point of the circuit is calculated and analyzed to make the circuit work in the amplified state. Through the simulation verification and analysis of Multisim software, the circuit can vibrate without increasing the disturbance of power switch, and the oscillation frequency is consistent with the theoretical calculation. This circuit 

has low hardware requirements and is easy to operate. It can promote students to understand the structure of oscillation circuit, the basis and method of parameter setting.

Keywords: three-point oscillation; Multisim; oscillation frequency


参考文献:

[1] 周亚,戴伟,张鑫,等 . 基于地感线圈的车辆驶入检测电路设计及仿真 [J]. 电子技术应用,2022,48(6):107-111.

[2] 王玉爽,张吉同 . 单结晶体管振荡电路的 Multisim14.0 仿真及自制 [J]. 电子制作,2021(17):46-49+59.

[3] 钟俊,刘辉,刘恒 . 基于 Multisim 的 RC 桥式振荡电路分析 [J]. 轻工科技,2019,35(12):55-56.

[4] 吕紫薇,赵楠,郑向阳,等 . 浅析电容三点式正弦波振荡器的设计 [J]. 科技风,2019(13):4.

[5] 聂红玲 . 基于 Multisim 的正弦波振荡器性能测试仿真 [J].安徽电子信息职业技术学院学报,2018,17(2):29-31.


作者简介:吴文英(1984.09—),女,汉族,湖北武汉人,工程师,硕士,研方方向:电子技术。