Diode-lecture

# Diode-lecture - o C is about 25 mv Î has a value between 1...

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Diode symbol : + - Ideal Model : Reverse Forward Study of Diodes shows that the mathematical model best suited for the study of diode is: FB: ) 1 ( / - = T nV v s e I i RB: s I i = saturation current proportional to cross section area ~ 10 -15 A Where q kT V T / = is the thermal potential, in which k is the Boltzman Constant, T is the Temperature in K and q is the magnitude of charge. K = 1.38x10 -23 J/K q = 1.6x10 -19 C Thermal potential at room temperature (20
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Unformatted text preview: o C) is about 25 mv. Î· has a value between 1 and 2 depending on the material. Unless specified use 1. If , 1 / T nV v e then i = T nV v s e I / Exponential model ) ln( s T I i nV v = Rapid analysis requires the use of ideal model. Sometimes, that is not precise enough. In that case you use the battery model or battery/ resistor model. RB FB V D0...
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