Could some electronics guru please point me to a lumped parameter model of a pn-junction diode ? Does such a model exist ? Any hints, suggestions would be greatly appreciated.
Lumped parameter model of pn-junction diode
Dec 19, 2011
3 Replies
Everything is a nonlinear function of voltage and/or current. A "lumped" model can exist at only a single bias condition. Thus what value could it be? ...Jim Thompson
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Either that or the "lumped" model is Id = Iss * (exp(V/Vt) - 1).
(I think I got that right).
My liberal friends think I'm a conservative kook.
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Tim Wescott, Communications, Control, Circuits & Software
http://www.wescottdesign.com
I think that's right Tim, Most diodes have a 'non-ideality factor' of about 2, so there's a factor of ~2 somewhere in the exponential. (I can't recall if numerator or denominator.) You could then add some series resistance. And then the voltage dependent junction capacitance.
George H.
ttdesign.com
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