Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 46P
Using the substitution theorem, draw three equivalent branches for the branch a-b of the network of Fig.9.158.
Fig.9.158
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Question 2
A transistor is used as a switch and the waveforms are shown in Figure 2. The parameters are
Vcc = 225 V, VBE(sat) = 3 V, IB = 8 A, VCE(sat) = 2 V, Ics = 90 A, td = 0.5 µs, tr = 1 µs, ts = 3 µs, tƒ
= 2 μs, and f
10 kHz. The duty cycle is k 50%. The collector- emitter leakage current is
ICEO = 2 mA. Determine the power loss due to the collector current:
=
=
=
(a) during turn-on ton = td + tr
VCE
Vcc
(b) during conduction period tn
V CE(sat)
0
toff"
ton
Ics
0.9 Ics
(c) during turn-off toff = ts + tf
(d) during off-time tot
(e) the total average power losses PT
ICEO
0
IBS
0
Figure 2
V BE(sat)
0
主
*
td
tr
In
Is
If
to
iB
VBE
T= 1/fs
Question 1:
The beta (B) of the bipolar transistor shown in Figure 1 varies from 12 to 60. The load resistance
is Rc = 5. The dc supply voltage is VCC = 40 V and the input voltage to the base circuit is
VB = 5 V. If VCE(sat) = 1.2 V, VBE(sat) = 1.6 V, and RB = 0.8 2, calculate:
(a) the overdrive factor ODF.
(b) the forced ẞ
(c) the power loss in the transistor PT.
IB
VB
RB
+
V BE
RC
Vcc'
Ic
+
IE
Figure 1
VCE
I need help in creating a matlab code to find the currents
Chapter 9 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 9 - (a) Using the superposition theorem, determine the...Ch. 9 - a. Using the superposition theorem, determine the...Ch. 9 - Using the superposition theorem, determine the...Ch. 9 - Using superposition, find the current l through...Ch. 9 - Using superposition, find the voltage VR3 for the...Ch. 9 - Using superposition, find the voltage V2 for the...Ch. 9 - Using superposition, find the current through R1...Ch. 9 - Using superposition, find the voltage across the...Ch. 9 - a. Find the Thévenin equivalent circuit for the...Ch. 9 - a. Find the Thévenin equivalent circuit for the...
Ch. 9 - a. Find the Thévenin equivalent circuit for the...Ch. 9 - Find the Thévenin equivalent circuit for the...Ch. 9 - Find the Thévenin equivalent circuit for the...Ch. 9 - Find the Thévenin equivalent circuit for the...Ch. 9 - a. Find the Thévenin equivalent circuit for the...Ch. 9 - Determine the Thevénin equivalent circuit for the...Ch. 9 - a. Determine the Thévenin equivalent circuit for...Ch. 9 - For the network in Fig. 9.142, find the Thévenin...Ch. 9 - For the transistor network in Fig. 9.143. a. Find...Ch. 9 - For each vertical set of measurements appearing in...Ch. 9 - For the network of Fig.9.145, find the Thévenin...Ch. 9 - a. Find the Norton equivalent circuit for the...Ch. 9 - a. Find the Norton equivalent circuit for the...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - Find the Norton equivalent circuit for the network...Ch. 9 - a. Find the Norton equivalent circuit external to...Ch. 9 - a. Find the value of R for maximum power transfer...Ch. 9 - a. Find the value of R for maximum power transfer...Ch. 9 - a. Find the value of R for maximum power transfer...Ch. 9 - a. Find the value of RL in Fig.9.142 for maximum...Ch. 9 - a. For the network of Fig. 9.147, determine the...Ch. 9 - Find the resistance R1 in Fig.9.148 such that the...Ch. 9 - a. For the network in Fig.9.149, determine the...Ch. 9 - For the network in Fig. 9.150, determine the level...Ch. 9 - Using Millmans theorem, find the current through...Ch. 9 - Repeat Problem 38 for the network in Fig.9.152....Ch. 9 - Using Millmans theorem, find the current through...Ch. 9 - Using the dual of Millmans theorem, find the...Ch. 9 - Using the dual of Millmans theorem, find the...Ch. 9 - Using the substitution theorem, draw three...Ch. 9 - Using the substituion theorem, draw three...Ch. 9 - Using the substitution theorem, draw three...Ch. 9 - a. For the network in Fig. 9.159(a), determine the...Ch. 9 - a. For the network of Fig.9.16(a), determine the...Ch. 9 - a. Determine the voltageV for the network in...Ch. 9 - Using PSpice or Multisim and the superposition...Ch. 9 - Using PSpice or Multisim, determine the Thévenin...Ch. 9 - a. Using PSpice, plot the power delivered to the...Ch. 9 - Change the 300 resistor in Fig. 9.145 to a...
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