two Stage BJT Amplifier design(Common emitter)

Discussion in 'The Projects Forum' started by Mlindos, Feb 17, 2009.

  1. Mlindos

    Thread Starter New Member

    Feb 17, 2009
    Hi all

    can anyone help with reasoning. When designing a 2 stage BJT amplifier with a pnp transistor. there is a bypass capacitor across Re one may connect to Vcc for pnp transistor of which the Vcc becomes ground in AC model. If one decide to connect that capacitor to ground instead of Vcc what effect may it bring when you take a circuit to AC model.
  2. mik3

    Senior Member

    Feb 4, 2008
    Make the AC model of the transistor and see where it is connected. Then analyze the circuit to see the effect.