8.14 Diode equation
The general characteristics of a p-n diode can be represented by an equation called Shockley’s equation for the forward and reverse bias regions:
where
I = Diode current
Is = Reverse saturation current
VD = Forward biased voltage across the diode
η = Identity factor, this depends on the construction and operating conditions
= 1 to 2, usually taken as 1
Vt = Thermal voltage = 
kB = Boltzmann’s constant = 1.38 × 10 –23 J/K
T = Absolute temperature in Kelvin
q = magnitude of ...
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