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超外差式收音机的电路仿真

更新时间:2020-07-26 04:24:36 大小:3M 上传用户:六3无线电查看TA发布的资源 标签:超外差式收音机电路仿真 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(1) 举报

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为了提高超外差式收音机原理的教学效果,把Multisim引入课堂。首先,利用Multisim创建了振荡线圈和中周模型。在此基础上,再将收音机的工作过程进行完整地仿真,着重分析了本机振荡、变频以及经过三级中周选频放大后的信号。教学实践表明,这一措施有助于学生理解收音机基本原理,提高了学习兴趣,并对收音机的检测和维修有很好地指导作用。

In order to improve the teaching effect about the principle of superheterodyne radio, Multisim simulation is introduced into the teaching classroom. Firstly, an oscillator coil and three intermediate frequency transformer models are created by Muhisim simulation. On this basis the simulation about the working process of the superhete-rodyne radio is implemented. Signal analysis is focused on local oscillation, frequency conversion and 3-stage intermediate-frequency amplification. Teaching practice shows that the measure helps students understand the basic principles of the radio and improve students' learning interest, and also can provide guidance for testing and servicing of the radio.

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超外差式收音机的电路仿真.pdf 3M

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