Need help with diode equation :(

Discussion in 'Homework Help' started by unclebehrooz, Oct 2, 2012.

  1. unclebehrooz

    Thread Starter New Member

    Oct 1, 2012
    2
    0
    Our Professor asked me to prove the equation of dynamic resistance of diode , he want me to explain him where did the equation come from !


    The equation is this : r_AC{} = n . V_T{} / I_Q{}


    r_AC{} is dynmic resistance
    V_T{} stands for thermal voltage
    I_Q{} is the I at the operating point of diode

    so if you know how it has made , please let your friend knows it too :)
     
    Last edited: Oct 2, 2012
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