Plotting gain v frequency in LTspice

Discussion in 'Homework Help' started by bennyq, Mar 20, 2015.

  1. bennyq

    Thread Starter New Member

    Sep 13, 2014
    Hello, im trying to plot gain of a transistor in ltspice verse frequency. The voltage gain that is of V(collector)/V(base) of a biased npn transistor. I can use measure to get the peak to peak values but cannot figure out how I can plot it.
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    Looking at your file, it appears that you are trying to mix two different types of simulations. Do you want to do a Bode plot of frequency response of the transistor linearized for small signals around its bias point (.AC analysis, frequency domain), or do you want to do a time domain with sinosoidal stimulus at stepped frequencies (.tran analysis)?