Problem 1:Consider the circuit shown below. The transistor parameters are Kn1 = 0.5 mA/V2 , Kn2 = 0.2 mA/V2 , VT N1 = VT N2 = 1.2 V, and λ1 = λ2 = 0. The quiescent drain currents are ID1 = 0.2 mA and ID2 = 0.5 mA. (a) Determine the small-signal voltage gain of the given multistage amplifier. Answer: -6.14. (b) Calculate the small-signal output resistance Ro. Answer: 1.32 kΩ. Problem 2:The transistor parameters for the given circuit are β1 = 120, β2 = 80, VBE1 (on) = VBE2 (on) = 0.7 V, and VA1 = VA2 = ∞. (a) Determine the quiescent collector current in each transistor. Answer: IC1 = 2.253 mA, IC2 = 69.73 mA. (b) Find the small-signal voltage gain Av = vo/vs. Answer: 0.99. (c) Determine the input and output resistances Rib and Ro. Answer: Rib = 467.6 kΩ, Ro = 0.512 Ω Problem#2The transistor parameters for the given circuit are ß1 = 120, B: = 80, VBE1 (on) = VBE2(on) = 0.7 V, and Vai = Va2= 0.(a) Determine the quiescent collector current in each transistor. Answer: Icı= 2.253mA, Icz- 69.73 mA.(b) Find the small-signal voltage gain A, - vo/Vs. Answer: 0.99.(c) Determine the input and output resistances Ro and Rp. Answer: Ry = 467.6 k2,R, = 0.512 2.Vcc=9 VR -0.5 k25 V50 2www Problem#1Consider the circuit shown below. The transistor parameters are Kai = 0.5 mA/V?,Kn2 = 0.2 mA/V?, VTNI = VTN2= 1.2 V, and å1 = 12 = 0. The quiescent drain currentsare Ipi = 0.2 mA and Ip = 0.5 mA.(a) Determine the small-signal voltage gain of the given multistage amplifier.Answer: -6.14.(b) Calculate the small-signal output resistance R. Answer: 1.32 kN.v+ = 5 VR383 k2Rp =16.1 k2R;Rs =4 k2CcwwHHH MiR.M2 CaR2 =135 k2RS =Cs3.9 k2Rs =8 k2ER =4 k2V=-5 Vww

Problem #1: A. Small Signal Equivalent Circuit:…

Answered: Problem#2 The transistor parameters for…

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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Problem 1:

Consider the circuit shown below. The transistor parameters are Kn1 = 0.5 mA/V2 , Kn2 = 0.2 mA/V2 , VT N1 = VT N2 = 1.2 V, and λ1 = λ2 = 0. The quiescent drain currents are ID1 = 0.2 mA and ID2 = 0.5 mA. (a) Determine the small-signal voltage gain of the given multistage amplifier. Answer: -6.14. (b) Calculate the small-signal output resistance Ro. Answer: 1.32 kΩ.

Problem 2:

The transistor parameters for the given circuit are β1 = 120, β2 = 80, VBE1 (on) = VBE2 (on) = 0.7 V, and VA1 = VA2 = ∞. (a) Determine the quiescent collector current in each transistor. Answer: IC1 = 2.253 mA, IC2 = 69.73 mA. (b) Find the small-signal voltage gain Av = vo/vs. Answer: 0.99. (c) Determine the input and output resistances Rib and Ro. Answer: Rib = 467.6 kΩ, Ro = 0.512 Ω

Problem#1
Consider the circuit shown below. The transistor parameters are Kai = 0.5 mA/V?,
Kn2 = 0.2 mA/V?, VTNI = VTN2= 1.2 V, and å1 = 12 = 0. The quiescent drain currents
are Ipi = 0.2 mA and Ip = 0.5 mA.
(a) Determine the small-signal voltage gain of the given multistage amplifier.
Answer: -6.14.
(b) Calculate the small-signal output resistance R. Answer: 1.32 kN.
v+ = 5 V
R
383 k2
Rp =
16.1 k2
R;
Rs =
4 k2
Cc
wwHH
H Mi
R.
M2 Ca
R2 =
135 k2
RS =
Cs
3.9 k2
Rs =
8 k2
ER =
4 k2
V=-5 V
ww

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