1) Consider the amplifier shown below. Assume that VoQ = 6V and that the transistor is modeled as follows: VA= 100V, p = 100, VT = .025V 12V Vin WW 2K HH C1 12V 202K Vin2 42222 12K 1.2K Vo a) Determine the small signal parameters for the transistor Vo b) Perform small signal analysis to determine Av2 Vin2 shorts. = C2 Assume that the capacitors can be modeled as Vo Assume that the capacitors can be modeled as shorts. c) Perform small signal analysis to determine Av = d) Perform small signal analysis to determine Ri (at Vin) Assume that the capacitors can be modeled as shorts. Vin

1) Consider the amplifier shown below. Assume that VoQ = 6V and that the transistor is modeled as follows: VA= 100V, p = 100, VT = .025V 12V Vin WW 2K HH C1 12V 202K Vin2 42222 12K 1.2K Vo a) Determine the small signal parameters for the transistor Vo b) Perform small signal analysis to determine Av2 Vin2 shorts. = C2 Assume that the capacitors can be modeled as Vo Assume that the capacitors can be modeled as shorts. c) Perform small signal analysis to determine Av = d) Perform small signal analysis to determine Ri (at Vin) Assume that the capacitors can be modeled as shorts. Vin

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

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1) Consider the amplifier shown below. Assume that VoQ = 6V and that the transistor is modeled as follows:
VA= 100V, p = 100, VT = .025V
12V
Vin
WW
2K
HH
C1
12V
202K
Vin2
42222
12K
1.2K
Vo
a) Determine the small signal parameters for the transistor
Vo
b) Perform small signal analysis to determine Av2
Vin2
shorts.
=
C2
Assume that the capacitors can be modeled as
Vo
Assume that the capacitors can be modeled as shorts.
Vin
c) Perform small signal analysis to determine Av =
d) Perform small signal analysis to determine Ri (at Vin) Assume that the capacitors can be modeled as shorts.

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Step 1: Given information

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Step 2: Determination of Small signal Equivalent of the amplifier

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Step 3: Determination of Ic using Dc analysis of transistor

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Step 4: Determination of small signal parameters of the transistor

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Step 5: Determination of small signal parameters of the transistor

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Step 6: Determination of Voltage gain Av2

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Step 7: Determination of overall voltage gain

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Step 8: Determination of input resistance

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