如图所示电路中,已知晶体管的β=80,rbe=1kΩ,Ui=20mA 静态时UBEQ=0.7V,UCEQ=4V,IBQ=20μA(1)(1)求解电压放大倍数 Au=U0/Ui(2)求解电压放大倍数Aui=Au/Ai(3)求放大电路的输入输出电阻Ri 和Ro
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![如图所示电路中,已知晶体管的β=80,rbe=1kΩ,Ui=20mA 静态时UBEQ=0.7V,UCEQ=4V,IBQ=20μA(1)(1)求解电压放大倍数 Au=U0/Ui(2)求解电压放大倍数Aui=Au/Ai(3)求放大电路的输入输出电阻Ri 和Ro](/uploads/image/z/6315139-19-9.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E7%94%B5%E8%B7%AF%E4%B8%AD%2C%E5%B7%B2%E7%9F%A5%E6%99%B6%E4%BD%93%E7%AE%A1%E7%9A%84%CE%B2%EF%BC%9D80%2Crbe%EF%BC%9D1k%CE%A9%2CUi%3D20mA+%E9%9D%99%E6%80%81%E6%97%B6UBEQ%EF%BC%9D0.7V%2CUCEQ%EF%BC%9D4V%2CIBQ%3D20%CE%BCA%281%29%281%29%E6%B1%82%E8%A7%A3%E7%94%B5%E5%8E%8B%E6%94%BE%E5%A4%A7%E5%80%8D%E6%95%B0+Au%3DU0%2FUi%282%29%E6%B1%82%E8%A7%A3%E7%94%B5%E5%8E%8B%E6%94%BE%E5%A4%A7%E5%80%8D%E6%95%B0Aui%3DAu%2FAi%283%29%E6%B1%82%E6%94%BE%E5%A4%A7%E7%94%B5%E8%B7%AF%E7%9A%84%E8%BE%93%E5%85%A5%E8%BE%93%E5%87%BA%E7%94%B5%E9%98%BBRi+%E5%92%8CRo)
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