同相输入式放大电路图.ewb

Multisim2001软件的仿真电路实例261例

Electronics Workbench Circuit File
Version: 5
Charset: ANSI
Description: 
"同相输入式放大电路图" 
"	图中诸元件的作用与反相输入式放大电路中的相同。" 
"	电路的型式是电压串联负反馈。" 
"	分析放大倍数时，把放大器的输入端看作虚开路。" 
"	放大倍数：Af=Uo/Ui=1+Rf2/Rf1" 
"	而在分析计算放大器的输入电阻时，把流过电阻Rr的电流就是放大器输入端的电流。" 
"	输入电阻：Rif=Ui/Ii=（1+AB）Ri" 
"	特点：它的反相输入端有一个等于输入电压的共模电压。" 
"" 

EncryptionType: 2
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