Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 14P
For the parallel resonant network in Fig. 21.55:
a. Calculate fs.
b. Determine Q using
c. Determine fp and fm.
d. Calculate XL and Xc using fp How do they compare?
e. Find the total impedance at resonance (fp).
f. Calculate V at resonance (fp).
g. Determine Q and the BWusing fp.
h. Calculate VL and Ic at fp.
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I want to explain how the result becomes (735.1) Hz)
and what are the steps and explain the reasons?
Q6 The FET shown in Fig. 1.43 has gm = 3.4mS and ra =100 K. Find the approximate
lower cutoff frequency. Ans: 735.1 Hz.
25V
2ΚΩ
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0.02µF
0.02µF
20 ΚΩ
330kQ
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OpF
Fig. 1.43 Circuit for Q6.
40ΚΩ
3. What is the function of LM565 pin 6?
4. What is the purpose of the multistage low-pass filter between the LM565
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C10.1μ
FSK
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w₁
R2
100k
-o+5V(Vcc)
VR1
10k
C4
C5:
0.1 μ.
0.1μ
0.1 μ
8
10
R3
R4
D₁
FSK
Phase
Rx 7
10K
10K
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www
ww
ww
1N4004
+
Demodulated
Output
6
AMP
R₁
6
100k
3
C₂
0.05 μ
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4
5
9
U1
-5V
LM565
-0-5V(VEE)
Fig. 14-2 FSK demodulator
U2
R6
μ4741
10k
1. What components determine the free-running frequency of the VCO in
LM565 of Fig. 14-2?
2. What is the purpose of μA741 in Fig. 14-2?
C10.1μ
FSK
Input
-o+5V(Vcc)
VR1
10k
C4
C5:
0.1 μ.
0.1 μ
0.1 μ
8
10
R3
R4
R5
Phase
Rx 7
10K
10K
10k
D₁
FSK
Detector
www
ww
ww
ww
1N4004
+
Demodulated
Output
AMP
6
R₁
6
100k
w₁
R2
100k
3
C₂
0.05 μ
VCO
4
5
9
U1
-5V
LM565
-0-5V(VEE)
Fig. 14-2 FSK demodulator
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R6
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10k
Chapter 21 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 21 - Find the resonant s and fs for the series circuit...Ch. 21 - For the senes circuit in Fig. 21.51 : a. Find the...Ch. 21 - For the senes circuit in Fig. 21.52 : a. Find the...Ch. 21 - For the circuit in Fig. 21.53: a. Find the value...Ch. 21 - a. Find the bandwidth of a series resonant circuit...Ch. 21 - A series circuit has a resonant frequency of 10...Ch. 21 - a. The bandwidth of a series resonant circuit is...Ch. 21 - The cutoff frequencies of a series resonant...Ch. 21 - a. Design a series resonant circuit with an input...Ch. 21 - Design a series resonant circuit to have a...
Ch. 21 - A series resonant circuit is to resonate at s=2106...Ch. 21 - Prob. 12PCh. 21 - For the ideal parallel resonant circuit in Fig. 21...Ch. 21 - For the parallel resonant network in Fig. 21.55:...Ch. 21 - The network of Fig. 21.56 has a supply with an...Ch. 21 - For the network in Fig. 21.57: a. Find the value...Ch. 21 - The network shown in Fig. 21.58 is to resonate at...Ch. 21 - For the network in Fig. 21.59: a. Find the...Ch. 21 - Prob. 19PCh. 21 - It is desired that the impedance ZT of the high Q...Ch. 21 - For the network in Fig. 21.62: a. Find fp. b....Ch. 21 - For the network in Fig. 21.63: a. Find the value...Ch. 21 - Prob. 23PCh. 21 - For the network in Fig. 21.65: a. Find fs. fp, and...Ch. 21 - For the network in Fig. 21.66, the following are...Ch. 21 - Prob. 26PCh. 21 - For the parallel resonant circuit in Fig. 21.68:...Ch. 21 - Verify the results in Example 21.8, That is, show...Ch. 21 - Find fp and fm for the parallel resonant network...
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