(c) Refer to the circuit in Fig 7.2 for this part of the question: (i) Given Vs = 10 V, Ip = 15 mA, R1 = 30 kQ, R2 = 300 2, R3 = 20 k2, R4 = 60 Q, and the MOSFET has a threshold voltage of VT = 1 V, determine VGs and Vos- %3D %3D (ii) Hence determine the operating region of the MOSFET, stating your reasons. (iii) Sketch the small signal equivalent circuit of the amplifier circuit.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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(c) Refer to the circuit in Fig 7.2 for this part of the question:
(i) Given Vs = 10 V, Ip = 15 mA, R1 = 30 kQ, R2 = 300 , R3 = 20 ko, R4 = 60 Q, and the MOSFET
has a threshold voltage of VT = 1 V, determine VGs and VDs-
%3D
%3D
%3D
(ii) Hence determine the operating region of the MOSFET, stating your reasons.
(ii) Sketch the small signal equivalent circuit of the amplifier circuit.
Note: The small signal equivalent circuit for a MOSFET is provided in Figure 5.3 for your reference.
(iv) Given that gm = 80 mS and assume ro is infinite, find the small signal gain of the circuit.
%3D
(v) Find the small signal gain when R4 is bypassed by a capacitor in parallel.
Transcribed Image Text:(c) Refer to the circuit in Fig 7.2 for this part of the question: (i) Given Vs = 10 V, Ip = 15 mA, R1 = 30 kQ, R2 = 300 , R3 = 20 ko, R4 = 60 Q, and the MOSFET has a threshold voltage of VT = 1 V, determine VGs and VDs- %3D %3D %3D (ii) Hence determine the operating region of the MOSFET, stating your reasons. (ii) Sketch the small signal equivalent circuit of the amplifier circuit. Note: The small signal equivalent circuit for a MOSFET is provided in Figure 5.3 for your reference. (iv) Given that gm = 80 mS and assume ro is infinite, find the small signal gain of the circuit. %3D (v) Find the small signal gain when R4 is bypassed by a capacitor in parallel.
R1
R3
out
Vs
Vin
oH
Ip
R3
R4
Question 8
Fig 7.2: Circuitfor question 8c
Fig 7.3: S
www
ww
Transcribed Image Text:R1 R3 out Vs Vin oH Ip R3 R4 Question 8 Fig 7.2: Circuitfor question 8c Fig 7.3: S www ww
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