Refer to the Image Attached. Neglect the Early effect (that is, assume ro = ∞) and assume |VBE| = 0.7V.For VA = VB = 0V and neglecting all base currents, design the circuit so that each of Q1 and Q2 operates at a dc bias current of 0.4 mA, VC = VD = +10V, VE = 0V, and Q5 operates at a dc bias current of 1.8 mA. Specify the dc bias current at which each of Q3 and Q4 will be operating and give the required values of R1, R2, R3, R4, and R5.If β = 100, what must the value of each of the two resistances labeled Re be to obtain an input differential resistance of 54 kΩ?Find the differential voltage gain of the input stage, Q1−Q2.Find the voltage gain of the second stage, Q3−Q4.Find the voltage gain of the output stage, Q5.Find the overall voltage gain, vout/vid, where vout is the ac output voltage at node E, and vid is the differential input between the bases of Q1 and Q2. +15 Vx2x1R2R3DR1Q4-oBOsAoOER.ReR4R5x1x1-15 Vwwwwww

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Answered: For VA = VB = 0V and neglecting all…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Refer to the Image Attached. Neglect the Early effect (that is, assume r_o = ∞) and assume |V_BE| = 0.7V.

For V_A = V_B = 0V and neglecting all base currents, design the circuit so that each of Q₁ and Q₂ operates at a dc bias current of 0.4 mA, V_C = V_D = +10V, V_E = 0V, and Q₅ operates at a dc bias current of 1.8 mA. Specify the dc bias current at which each of Q₃ and Q₄ will be operating and give the required values of R₁, R₂, R₃, R₄, and R₅.
If β = 100, what must the value of each of the two resistances labeled R_e be to obtain an input differential resistance of 54 kΩ?
Find the differential voltage gain of the input stage, Q₁−Q₂.
Find the voltage gain of the second stage, Q₃−Q₄.
Find the voltage gain of the output stage, Q₅.
Find the overall voltage gain, v_out/v_id, where v_out is the ac output voltage at node E, and v_id is the differential input between the bases of Q₁ and Q₂.

+15 V
x2
x1
R2
R3
D
R1
Q4
-oB
Os
Ao
OE
R.
Re
R4
R5
x1
x1
-15 V
ww
ww
ww

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