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Unformatted text preview: initially deposited near the surface and A is the area (cm 2 ). The difference between the two equations is apparent at x=0. Equation 1 yields N=N and equation 2 yields a time varying function. Important: The potential that is built across the diode is a function of the number of Acceptor and Donor atoms: For example: AC model and DC models - Low and High Frequency models Small signal model at low frequencies: Capacitance can be ignored. Model is simply a resistor. It is also known as Dynamic Resistance. g I I n V di dv r D T D D 1 = + = = Dynamic signal model depends on temperature. ___________________________________________________________________________ Website to check: http://ocw.mit.edu/NR/rdonlyres/Electrical-Engineering-and-Computer-Science/6-071Introduction-to-ElectronicsFall2002/625CCF81-D846-43AF-94DF-72EB66DE5CD0/0/f02lec16.pdf...
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This note was uploaded on 03/03/2010 for the course EE EE330 taught by Professor Maryam during the Spring '10 term at CSU Long Beach.
- Spring '10