Figure 1 shows a differential amplifier connection with constant current source to provide a large valueof resistance from common emitter to AC ground. Assume that the value for B, = B, = ß, = 100.+15 V4.7 kQ4.7 k2VoQ1Q2Vi10 mVQ31.5 k2Vz1.2 k25.1 V- 15 VFigure 1 (c)Calculate AC differential parameter such as input impedance (Z,), output impedance(Zo) and single ended AC voltage gain ( A, ).

Answered: Image /qna-images/answer/819dcfdc-5cb9-47ff-afdf-99b1f8b75cb2.jpg

Answered: Z) and single ended AC voltage gain ( A…

Engineering

Electrical Engineering

Z) and single ended AC voltage gain ( A ).

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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Concept explainers

Applications of Diode

Diodes are the two-terminal components used in many electronics and electrical applications. The current flow in such components is unidirectional. A diode provides very low resistance in one direction, but in the opposite direction, it provides very high resistance. One of the common functions of a diode is to allow the current flow in the forward direction and resist the current flow in the reverse direction. However, besides this simple functioning of diodes, diodes generally show non-linear current-voltage characteristics. For instance, the semiconductor diodes conduct current only when a certain threshold voltage, or preferably cut-off voltage is reached in the forward direction. They are known as forward-biased diodes. Also, upon reaching a certain voltage, known as the breakdown voltage, the high resistance provided by diodes in the reverse direction reaches a low resistance value.

Question

Figure 1 shows a differential amplifier connection with constant current source to provide a large value
of resistance from common emitter to AC ground. Assume that the value for B, = B, = ß, = 100.
+15 V
4.7 kQ
4.7 k2
Vo
Q1
Q2
Vi
10 mV
Q3
1.5 k2
Vz
1.2 k2
5.1 V
- 15 V
Figure 1

(c)
Calculate AC differential parameter such as input impedance (Z,), output impedance
(Zo) and single ended AC voltage gain ( A, ).

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