Need help with diode equation :(

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

  1. unclebehrooz

    Thread Starter New Member

    Oct 1, 2012
    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