Calculate the output 1dB compression point P1dB

Discussion in 'Homework Help' started by thisonedude, Oct 22, 2015.

  1. thisonedude

    Thread Starter Member

    Apr 20, 2014
    Alright so attached is the question. Alright so i've been stuck on this problem for some time. here is what i understand from the question and how far i've solved it (Although i'm not sure if i'm right). So i'm given the output voltage. I know that the input voltage is given by: Vi = VoCos(wt). so i plugged this into the output voltage and got the following: Vo=10VoCos(wt) + 0.4Vo^2Cos^2(wt) + 0.66Vo^3Cos^3(wt). this gives me a1 = 10, a2 = 0.4 and a3 = 0.66. I also know that the gain compression can be calculated: G = a1+ (3/4)a3Vo^2. but i don't know what to do from here. I don't have the value of Vo. I'm stuck. Any help is highly appreciated.