Question 1For the circuit in Figure 1, the transistor has the following parameters:k = 2 mA/V², Vr = -2V, ra=ro = 0Based on the circuit,a. Prove that InQ = 0.44 mA and Vesq = -2.47 Vb. Draw the ac equivalent circuit at mid-frequency.c. Determine the input and output impedances, Zi and Zo.+10V180 kn* 10 kNRsR2160 knC2RL10 knRig = 2 knVsigR3150 k-10VFigure 1 Consider an enhancement MOSFET common source amplifier circuit in Figure 2. The outputcharacteristic is showed in Figure 3. Assume that the circuit is operating in the saturation region andk = 5 mA/V2. It also given that ra = ro = 0, Cgd = 2 pF, Cgs = 4 pF, Cás = 1 pF, Cwi = 4 pF and Cwo = 3pF.10 VRo100 26 MOR$1002R5002VoR$Vo 14 MO100 2CsFigure 26050-30-20-100 1 2 3 4 51 8 9 10Figure 3a. Using DC load line, prove that Inq = 22.5 mA and Vpso = 5.5 V for Vaso = 2.5V.b. Draw the AC equivalent circuit at mid frequency.c. Estimate the voltage gain Av = Vo /Ni.d. Determine the dominant high cut – off frequency for the circuit.(yu) 4

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For the circuit in Figure 1, the transistor has the following parameters: k=2 mA/V², Vr=-2V, ra=ro = 0 Based on the circuit, a. Prove that Ino = 0.44 mA and VasQ =-2.47 V b. Draw the ac equivalent circuit at mid-frequency. c. Determine the input and output impedances, Zi and Zo.

For the circuit in Figure 1, the transistor has the following parameters: k=2 mA/V², Vr=-2V, ra=ro = 0 Based on the circuit, a. Prove that Ino = 0.44 mA and VasQ =-2.47 V b. Draw the ac equivalent circuit at mid-frequency. c. Determine the input and output impedances, Zi and Zo.

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

Consider an enhancement MOSFET common source amplifier circuit in Figure 2. The output
characteristic is showed in Figure 3. Assume that the circuit is operating in the saturation region and
k = 5 mA/V2. It also given that ra = ro = 0, Cgd = 2 pF, Cgs = 4 pF, Cás = 1 pF, Cwi = 4 pF and Cwo = 3pF.
10 V
Ro
100 2
6 MO
R$
1002
R
5002
Vo
R$
Vo 14 MO
100 2
Cs
Figure 2
60
50-
30-
20-
10
0 1 2 3 4 5
1 8 9 10
Figure 3
a. Using DC load line, prove that Inq = 22.5 mA and Vpso = 5.5 V for Vaso = 2.5V.
b. Draw the AC equivalent circuit at mid frequency.
c. Estimate the voltage gain Av = Vo /Ni.
d. Determine the dominant high cut – off frequency for the circuit.
(yu) 4

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