What is the coomon groundFET doing in this circuit

Discussion in 'The Projects Forum' started by asoljazworld, May 4, 2013.

  1. asoljazworld

    Thread Starter New Member

    May 4, 2013
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    0
    Dear members

    I am having trouble understanding this circuit. I have gone through all of the components, but I get stuck really understanding the functionality of the bipolar npn that has a 5pF capacitor connect fro drain to source. Could someone please explain that part of the circuit to me? Thanks in advance.
     
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    Last edited: May 4, 2013
  2. asoljazworld

    Thread Starter New Member

    May 4, 2013
    10
    0
    I accidently uploaded the wrong schematic. I have attached the one I am working on below. Sorry
     
  3. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Please don´t make multiple threads on the same topic.
     
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