1. Mar 30, 2008 #1

   unplebeian

   

   1. The problem statement, all variables and given/known data
   
   What does a capacitor across the base and collector of the transistor do? Apparantly adding a cap (1uF) will slow it down. Can anyone explain how?
   
   2. Relevant equations
   
   
   
   3. The attempt at a solution

    

   unplebeian, Mar 30, 2008
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3. Mar 30, 2008 #2

   CEL

   

   Have you already studied feedback? The capacitor provides a feedback of high frequencies from the collector to the base.

    

   CEL, Mar 30, 2008
4. Mar 30, 2008 #3

   unplebeian

   

   Can you please elaborate or provide me with a reference. I have a text by Gaussi on Analog devices. What section does this come in (miller capacitance??)

    

   unplebeian, Mar 30, 2008
5. Mar 30, 2008 #4

   CEL

   

   I don't know your textbook. Miller capacitance is a way of analyzing the effect of the feedback provided by your capacitor.

    

   CEL, Mar 30, 2008

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