摘要
利用Multisim12.0仿真软件对静态工作点稳定电路的频率特性进行了测试研究,观察了幅频特性曲线和相频特性曲线的变化规律;采用"交流分析"或波特仪等方法,测试了耦合电容、旁路电容和静态偏置电阻等电路参数改变引起的中频电压增益、上限截止频率和下限截止频率的变化。发现虚拟测试的结果与理论分析计算结果基本一致。将Multisim12.0仿真软件合理地用于电路实验教学中,有助于提升学生的实践动手能力。
The research on the test of the frequency characteristics of the quiescent operating point stabilizing circuit is carried out by using the Multisim 12.0 simulation software,and the change laws of the amplitude frequency characteristic curve and phase frequency characteristic curve are observed.By using the "AC analysis"or Potter instrument and other methods,the change of the values of the intermediate frequency voltage gain,upper cut-off frequency and lower cut-off frequency,etc.,which is caused by the circuit parameter change of the coupling capacitance,bypass capacitance,static bias resistance,etc.,is tested.It is found that the result of the virtual test is basically consistent with that of the theoretical analysis.The Multisim 12.0 simulation software is reasonably applied to the circuit experimental teaching,which is helpful to improve students' practical ability.
出处
《实验技术与管理》
CAS
北大核心
2018年第1期125-129,共5页
Experimental Technology and Management
基金
国家自然科学基金项目(21173068)
2015年河南省"电子信息科学与技术"教学团队资助项目(2015)
2017年河南省教师教育课程改革研究项目(2017-JSJYZD-005)
关键词
电子电路
频率特性
静态工作点
虚拟测试
electronic circuit
frequency characteristics
quiescent operating point
virtual test
作者简介
侯卫周（1974-）,男,山西永济,硕士,副教授,主要研究方向为电子电路设计及应用.E-mail：hwz204＠163.com
