Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Question
Chapter 8, Problem 8.13P
(a)
To determine
To show: The expression for the small-signal voltage gain is
(b)
To determine
The minimum value of the collector current.
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Students have asked these similar questions
Problem
In the lectures, we discussed how to use an NPN BJT as an emitter follower. In the circuit
below, the emitter follower is connected to a non-ideal voltage source V with a source
resistance R
Assume beta = 100, V
= 0.7 V, V
= OV.
BE
CE,sat
a. If R = 0 and V = 3 V, determine the value of V.
S
b. If R = 5k and V = 3 V, determine the value of V.
S
= 5k , determine the value of V that will cause the BJT to start
c. If R
saturating.
+5V
Rs
Vs O-
M
550
V₂
R₁=1K
Ql:A: Design a multi-range ammeter of 0.5 and I Amp. using a PMMC(galvanometer) of
500 internal resistance and full-scale current of I ma. Show the way of connection with the
load Ri.
QUE STION FIVE
A) For the drauit of Figure 8, determine the following parameters Ig, Ip, Ves,VD. Vac and
then state the mode in which the BJT is operating.
Use either the graphical (using a graph paper) approach or the mathematical
approach
Vcc
Given :
Vcc = 20 V
oss = 8mA
%3D
RB
Vc
V, =-4 V
Vss =-1 V
B =100
R3 = 470 2
Rc = 36 kn
Rs=1 k2
VD
RG
RG = 2 M2
%3!
Vss
Figure 8
B) A magnetic drcuit comprises three parts in series, each of uniform cross-ectional area (c.s.a).
They are: part (a) al ength of 80mm and c.s.a. 50mm, part (b) alength of 60mm and c.s.a.
90mm, pert (c) anairgap of length 0.5mm and c.s.a. 150mm.
A coil of 4000 tums is wound on part (b), and the flux density in the airgap is 0.30 T. Assuming
that all the flux passes through the given circuit, and that the relative permeability u, is 1300.
i.
Draw a well labdledmagnetic andequi valent electric circuit.
Estimate the coil current to produce such a flux density.
ii.
Chapter 8 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 8 - Prob. 8.1EPCh. 8 - Prob. 8.2EPCh. 8 - Prob. 8.3EPCh. 8 - Prob. 8.1TYUCh. 8 - Prob. 8.2TYUCh. 8 - Prob. 8.3TYUCh. 8 - Prob. 8.4EPCh. 8 - Prob. 8.5EPCh. 8 - Prob. 8.7EPCh. 8 - Prob. 8.4TYU
Ch. 8 - Prob. 8.5TYUCh. 8 - Prob. 8.6TYUCh. 8 - A transformercoupled emitterfollower amplifier is...Ch. 8 - Prob. 8.7TYUCh. 8 - Prob. 8.9EPCh. 8 - Prob. 8.11EPCh. 8 - Consider the classAB output stage shown in Figure...Ch. 8 - From Figure 8.36, show that the overall current...Ch. 8 - Prob. 1RQCh. 8 - Describe the safe operating area for a transistor.Ch. 8 - Why is an interdigitated structure typically used...Ch. 8 - Discuss the role of thermal resistance between...Ch. 8 - Define and describe the power derating curve for a...Ch. 8 - Define power conversion efficiency for an output...Ch. 8 - Prob. 7RQCh. 8 - Describe the operation of an ideal classB output...Ch. 8 - Discuss crossover distortion.Ch. 8 - What is meant by harmonic distortion?Ch. 8 - Describe the operation of a classAB output stage...Ch. 8 - Describe the operation of a transformercoupled...Ch. 8 - Prob. 13RQCh. 8 - Sketch a classAB complementary MOSFET pushpull...Ch. 8 - What are the advantages of a Darlington pair...Ch. 8 - Sketch a twotransistor configuration using npn and...Ch. 8 - Prob. 8.1PCh. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Prob. 8.4PCh. 8 - Prob. 8.5PCh. 8 - Prob. D8.6PCh. 8 - A particular transistor is rated for a maximum...Ch. 8 - Prob. 8.8PCh. 8 - For a power MOSFET, devcase=1.5C/W , snkamb=2.8C/W...Ch. 8 - Prob. 8.10PCh. 8 - The quiescent collector current in a BiT is ICQ=3A...Ch. 8 - Prob. 8.12PCh. 8 - Prob. 8.13PCh. 8 - Prob. 8.14PCh. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - Consider the classA sourcefollower circuit shown...Ch. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Prob. 8.20PCh. 8 - Prob. 8.21PCh. 8 - Consider an idealized classB output stage shown in...Ch. 8 - Consider an idealized classB output stage shown in...Ch. 8 - Prob. 8.24PCh. 8 - For the classB output stage shown in Figure P8.24,...Ch. 8 - Prob. 8.26PCh. 8 - Prob. 8.27PCh. 8 - Consider the classAB output stage in Figure P8.28....Ch. 8 - Prob. 8.29PCh. 8 - Prob. D8.30PCh. 8 - Prob. 8.31PCh. 8 - Prob. D8.32PCh. 8 - Consider the transformercoupled commonemitter...Ch. 8 - The parameters for the transformercoupled...Ch. 8 - A BJT emitter follower is coupled to a load with...Ch. 8 - Consider the transformercoupled emitter follower...Ch. 8 - A classA transformer-coupled emitter follower must...Ch. 8 - Repeat Problem 8.36 if the primary side of the...Ch. 8 - Consider the circuit in Figure 8.31. The circuit...Ch. 8 - Prob. D8.40PCh. 8 - The value of IBiass in the circuit shown in Figure...Ch. 8 - The transistors in the output stage in Figure 8.34...Ch. 8 - Consider the circuit in Figure 8.34. The supply...Ch. 8 - Prob. 8.44PCh. 8 - Prob. 8.45PCh. 8 - Consider the classAB MOSFET output stage shown in...Ch. 8 - Prob. 8.47PCh. 8 - Consider the classAB output stage in Figure P8.48....Ch. 8 - For the classAB output stage in Figure 8.36, the...
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- In the lectures, we discussed how to use an NPN BJT as an emitter follower. In the circuit below, the emitter follower is connected to a non-ideal voltage source V with a source resistance R S Assume beta = 100, V = 0.7 V, V BE = 0 V. CE,sat a. If R = 0 and V = 3 V, determine the value of V S S b. If R = 5k and V = 3 V, determine the value of V. S S C. If R = 5k , determine the value of V that will cause the BJT to start S +5V Rs Vs O M saturating. Vo R₁=1Karrow_forwardQl:A: Design a multi-range ammeter of 0.5 and I Amp. using a PMMC(galvanometer) of 500 internal resistance and full-scale current of 1 ma. Show the way of connection with the load RL.arrow_forwardDraw the DC and AC load line for a transistor amplifier circuit shown in Figure, also describe the optimum operating Point for the given values as follows: Rc = 10 KQ ; RL=20 KQ and V cc = 20 V +Vcc Ic Rc Cc Cc V. out R1 Vin wwwarrow_forward
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