Addition of Emitter follower

Discussion in 'Homework Help' started by Tera-Scale, Feb 25, 2011.

  1. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    When adding an emmitter follower in a simulation, I found out that when varying the VD resistors to increase current gain at the emitter, i am sacrificing the Votage gain which in some cases it is reduced by 12% , is this accepted. If not is there some reference of standard i can count on to bias the common collector properly?
  2. Adjuster

    Well-Known Member

    Dec 26, 2010
    Please post a schematic showing your circuit, and explain in more detail. For instance, what are VD resistors?

    Note that in general the voltage gain of an emitter follower is less than 1. The gain will be lower if the emitter current is small relative to the load impedance.