Vsis (~Q3 (a) What is the advantage of using MOSFET as compared to BJT at the first stage ofmulti-stage amplifier?Rais600 02wwwZ₁(b) Describe the function of the capacitor for the following condition:(1)(ii)SEEE/SKEE 1073(c)The transistors parameters in Figure Q.3 are given as follow:BJT(iv)↑B-350, VBE 0.7 V, Ic=0.3 mA, VT 26 mV, and ro=00E-MOSFETk 0.8 mA/V², VT- Vas(T) = 1 VC₁HEa capacitor between stage 1 and stage 2 of a RC-coupled amplifier.bypass capacitor which is commonly used in small signal amplifier.(i) Draw the ac equivalent circuit at middle frequency for circuit in Figure Q.3by using hybrid-x model.(ii) Determine the values of Z., Ziz and Zo.(iii) Calculate the gain, v/v, in decibel (dB).Draw and label the waveforms vo when v=2 sin 50t [mV] for one completecycle.+Roi50 ΚΩVi Ra6 knRo4.5 kQ₁Rs3 kQC₂не+15 VDS↑22R₁75 kR₂9 knFigure Q.3 Multistage amplifier circuitRe<5kQ C₁Q₂> RE2kQRez1kQ←2₂-C₁R₂20k2 %

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(a) What is the advantage of using MOSFET as compared to BJT at the first stage of multi-stage amplifier?

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

Vsis (~
Q3 (a) What is the advantage of using MOSFET as compared to BJT at the first stage of
multi-stage amplifier?
Rais
600 02
www
Z₁
(b) Describe the function of the capacitor for the following condition:
(1)
(ii)
SEEE/SKEE 1073
(c)
The transistors parameters in Figure Q.3 are given as follow:
BJT
(iv)
↑
B-350, VBE 0.7 V, Ic=0.3 mA, VT 26 mV, and ro=00
E-MOSFETk 0.8 mA/V², VT- Vas(T) = 1 V
C₁
HE
a capacitor between stage 1 and stage 2 of a RC-coupled amplifier.
bypass capacitor which is commonly used in small signal amplifier.
(i) Draw the ac equivalent circuit at middle frequency for circuit in Figure Q.3
by using hybrid-x model.
(ii) Determine the values of Z., Ziz and Zo.
(iii) Calculate the gain, v/v, in decibel (dB).
Draw and label the waveforms vo when v=2 sin 50t [mV] for one complete
cycle.
+
Roi
50 ΚΩ
Vi Ra
6 kn
Ro
4.5 k
Q₁
Rs
3 kQ
C₂
не
+15 V
DS
↑
22
R₁
75 k
R₂
9 kn
Figure Q.3 Multistage amplifier circuit
Re
<5kQ C₁
Q₂
> RE
2kQ
Rez
1kQ
←
2₂
-C₁
R₂
20k2 %

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