Bjt amplifier design...

Discussion in 'Homework Help' started by herbgriffin, Feb 14, 2011.

  1. herbgriffin

    Thread Starter New Member

    Feb 14, 2011
    please help in designing this bjt amplifier ...
    we are required that our input will be 50mVpeak and expected output to be 10Vpeak to peak..............the transistor that i will use is 2N2102 (i attach the specifications of the transistor) problem here is i don't know how to start ..i am actually planning to use Fixed bias circuit and common-emitter configuration.... How will i find the values that i will use for computation..... how will i find the q-point of the transistor in order to get the Vce(output) = 10Vp-p...please help...thank you in advance...
  2. Audioguru

    New Member

    Dec 20, 2007
    All you have is an input voltage and an output voltage. The voltage gain must be 10V/100mV= 100.
    You also must find out the input source resistance and the load resistance.

    Make the Q-point so that the collector voltage is about half the supply voltage.
    An emitter resistor is used for bias stability.