QUESTION 1: Consider the class-A emitter-follower circuit shown below. The values of resistors are R=2 kN and R1 = 1.425 kN . The circuit is biased by V*= 5 V, V¯ = -5 V. Assume all transistors are matched with VBE(on) = 0.62 V, VCE(sat) = 0.22 V, and V4=0. Neglect base currents. Calculate the value of Io. Then, determine the maximum and minimum values of output voltage and the corresponding input voltages for the circuit to operate in the linear region. Io (mA) Format : 4.95 Vo(max) (V) Format : 4.82 Vo(min) (V) Format : -4.94054 V{max) (V) Format : 5.3 V{min) (V) Format : -3.90093 V+ R ovo RL Q3 Q2 V-

QUESTION 1: Consider the class-A emitter-follower circuit shown below. The values of resistors are R=2 kN and R1 = 1.425 kN . The circuit is biased by V*= 5 V, V¯ = -5 V. Assume all transistors are matched with VBE(on) = 0.62 V, VCE(sat) = 0.22 V, and V4=0. Neglect base currents. Calculate the value of Io. Then, determine the maximum and minimum values of output voltage and the corresponding input voltages for the circuit to operate in the linear region. Io (mA) Format : 4.95 Vo(max) (V) Format : 4.82 Vo(min) (V) Format : -4.94054 V{max) (V) Format : 5.3 V{min) (V) Format : -3.90093 V+ R ovo RL Q3 Q2 V-

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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1. The circuit shown in the figure is a/an a. XOR gate b. AND gate c. XNOR gate d. OR gate 2. From the circuit shown, if the inputs A and B are both 1, Q3 is/has a. in the active region b. saturated c. at cut-off d. a collector-emitter voltage equal to 0 V3. From the circuit shown, if the inputs A and B are 1 and 0 respectively, Q3 is/has a. at cut-off b. saturated c. in the active region d. a positive collector-base voltage4. From the circuit shown, if the inputs A and B are 0 and 1 respectively, Q5 is/has/will| a. a negative base-collector voltage b. a collector-emitter voltage approximately 0 V c. at cut-off d. cause the LED to turn off
Design a voltage-divider bias network using a supply of 18 V, a transistor with a beta of 110, and an operating point of Ico = 6 mA and VCEQ = 4 V. Choose VE = 1/8 Vcc. %3D %3D Use BRE = 10R2. %3D 1. How much is the emitter voltage?
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Question 4
(iii), Why is the voltage-divider bias the preferred bias configuration? (iv) In a certain voltage-biased npn transistor, VB is 2.95 V. The DC emitter voltage is (a) 0.7 V (b) 2.95 V (c) 2.25 V (v) The emitter current is always (a) greater than the base current (b) less than the collector current (c) greater than the collector current (d) 3.65 V (d) answers (a) and (c)
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X=7, Y=0.