Vec= 15VT 2ook Cer lok Ces Vo {look Ni Rin

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
Problem 6RQ: What is CEMF?
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Question

Coonsider the common emitter amplifier shown in figure below. Assume a

β of 100, VBE = 0.7V, VT = 25mA and VA = 100V.

  •  Draw an equivalent DC model and determine the rπ, transconductance (gm) and ro. 
  • Draw an equaivalent AC model using the small-signal model
  • Find an expression for vbe and vo in terms of the input voltage

 

 

 

7 Vec= 15VT
18/-
Cer
2ook
l0k
so
10ok
28.6k
Ni
Rin
Transcribed Image Text:7 Vec= 15VT 18/- Cer 2ook l0k so 10ok 28.6k Ni Rin
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