multisim集成运算放大器组成的RC文氏电桥振荡器
来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/07/19 02:46:34
multisim集成运算放大器组成的RC文氏电桥振荡器
![](http://img.wesiedu.com/upload/c/db/cdbd0612a0bee3c79846b0f37965007a.jpg)
A simulation error has occurred.Would you like to run the Convergence Assistant to attempt to resolve this problem automatically?
不知道为什么会这样
![](http://img.wesiedu.com/upload/c/db/cdbd0612a0bee3c79846b0f37965007a.jpg)
A simulation error has occurred.Would you like to run the Convergence Assistant to attempt to resolve this problem automatically?
不知道为什么会这样
![multisim集成运算放大器组成的RC文氏电桥振荡器](/uploads/image/z/11057028-60-8.jpg?t=multisim%E9%9B%86%E6%88%90%E8%BF%90%E7%AE%97%E6%94%BE%E5%A4%A7%E5%99%A8%E7%BB%84%E6%88%90%E7%9A%84RC%E6%96%87%E6%B0%8F%E7%94%B5%E6%A1%A5%E6%8C%AF%E8%8D%A1%E5%99%A8)
所给电路有几个不适之处:
R3、R2没必要.R3应该短路,R2应该开路.
负反馈系数=1/(15+5.1+1)太小.可把R5改成10k电位器试一试.
经典文氏电桥振荡器参考电路如下:
再问:
我按照你说的那个图连了也还是有问题啊
再答: 还有一个原因,是兄台您把正负电源接反了!![](http://img.wesiedu.com/upload/9/32/932063fe74d3203d7718dd896c50f383.jpg)
R3、R2没必要.R3应该短路,R2应该开路.
负反馈系数=1/(15+5.1+1)太小.可把R5改成10k电位器试一试.
经典文氏电桥振荡器参考电路如下:
![](http://img.wesiedu.com/upload/0/a6/0a61e7b5e3e8e66d8f1173d1650b19ea.jpg)
再问:
![](http://img.wesiedu.com/upload/6/a6/6a6459273d6d5160cdc1ac06be1c1d2d.jpg)
再答: 还有一个原因,是兄台您把正负电源接反了!
![](http://img.wesiedu.com/upload/9/32/932063fe74d3203d7718dd896c50f383.jpg)