Two Port Config BJT

Discussion in 'Homework Help' started by jnez367, Aug 26, 2008.

  1. jnez367

    Thread Starter New Member

    Mar 14, 2008
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    If given Vs, Rsense, Vc, input current, how can I determine the input voltage? I am not sure if this requires hybrid parameters or something else. Any help would be appreciated. I am taking an an online course and I cannot find a similar problem in the text.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Can you post an example of the circuit that you need to solve?

    hgmjr
     
  3. jnez367

    Thread Starter New Member

    Mar 14, 2008
    9
    0
    Thanks for replying. All I have is numericals values for those variables I included in the original post. I really don't know enough to know if something is missing.
     
  4. jnez367

    Thread Starter New Member

    Mar 14, 2008
    9
    0
    Would this work?

    Assume input current 20 uA, Rs = 100, Vs 18 mV

    20 uA = 18 mV - Vin/100

    18 mV - 20 uA x 100 = Vin

    18 mV - 2 mV = 16 mV
     
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