re=VT/IE=25m/1m=25
Av=-(Rc//RL)/re+Re=-8
樓上應是Av=-(Rc//RL)/(re+Re)=-8
Av = -gm*Vpi*(Rc//RL) / ( Vpi + gm*Vpi*Re )
=-gm*1k / ( 1 + gm * 100 )
gm = Ic / VT = 1m /25m =0.04
Av = -0.04k / (1 + 4 )
= -8
19 圖示放大器電路若電流源 I 為 1 mA、RB = 100 kΩ,RC =..-阿摩線上測驗