3.5.2射极偏置电路 °+VCC b R 改进2+ R R R e RL R Re2 Rh C B·(R∥R1) +(+B)R1 R1=Rn1∥R2[rn+(1+/)R1] HOME end BACK+ – +VC C C2 + C1 Ce + Rc Re2 RL vo T Rb1 + Re1 Rb2 + – vi be e1 c L V (1 ) ( // ) r R R R A   + +  = −    i b1 b2 be e1 R = R // R // r + (1+  )R end 1 b 改进2 3.5.2 射极偏置电路