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Homework Help: Effects of speedup capacitor

  1. Apr 9, 2015 #1
    1. The problem statement, all variables and given/known data
    I'm asked to qualitatively draw two curves, one on top of the other: the resulting signal in Q4’s collector with and without the effect of the speedup capacitor (see attachment).

    2. Relevant equations

    3. The attempt at a solution
    I used the net to find the graphs in attachment 2. Do the curves in this attachment indeed demonstrate the effect of the speedup capacitor as requested in the question? I'm not sure.

    Attached Files:

  2. jcsd
  3. Apr 9, 2015 #2


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    Gold Member

    No, you are asked to draw two curves for the collector voltage, Vc. You have drawn the curves for the basis voltage, Vb.
  4. Apr 9, 2015 #3
    You are right. How may I then draw the curves for the collector voltage?
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