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<p>Impedance (Electricity) -- Mathematical models<br />Impedance (Electricity) -- Computer simulation<br />Semiconductors</p>
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Small-Signal Impedance Of A Junction Diode At High Injection Levels, John E. Lundy
Small-Signal Impedance Of A Junction Diode At High Injection Levels, John E. Lundy
Masters Theses
"A mathematical expression for the driving point impedance of a junction diode at high injection levels is developed. To evaluate the impedance versus frequency characteristic of a diode, it is necessary to know the minority carrier lifetime as a function of injection level and doping density in the base (lightly doped) region, the junction area, and the base width. The interesting characteristic of the diode impedance at high injection levels is the inductive reactance displayed by the diode.
The expression is developed by solving the differential equation for charge flow in the base region of a diode assuming space-charge neutrality …