ELECTRICITY FOR TRADES (LL W/ACCESS)
3rd Edition
ISBN: 9781260699487
Author: Petruzella
Publisher: MCG CUSTOM
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Chapter 8.1, Problem 16RQ
A 680-Ω resistor has a rated tolerance of ±10 percent. Determine the permissible ohmic range for this resistor.
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2. Using the approximate method, hand sketch the Bode plot for the following transfer
functions.
a) H(s) = 10
b) H(s) (s+1)
c) H(s):
=
1
=
+1
100
1000 (s+1)
10(s+1)
d) H(s) =
(s+100)
(180+1)
Q4: Write VHDL code to implement the finite-state machine described by the state
Diagram in Fig. 1.
Fig. 1
1. Consider the following feedback system.
Bode plot of G(s) is shown below.
Phase (deg)
Magnitude (dB)
-50
-100
-150
-200
0
-90
-180
-270
101
System: sys
Frequency (rad/s): 0.117
Magnitude (dB): -74
10°
K
G(s)
Bode Diagram
System: sys
Frequency (rad/s): 36.8
Magnitude (dB): -99.7
System: sys
Frequency (rad/s): 20
Magnitude (dB): -89.9
System: sys
Frequency (rad/s): 20
Phase (deg): -143
System: sys
Frequency (rad/s): 36.8
Phase (deg): -180
101
Frequency (rad/s)
a) Determine the range of K for which the closed-loop system is stable.
102
10³
b) If we want the gain margin to be exactly 50 dB, what is value for K we should
choose?
c) If we want the phase margin to be exactly 37°, what is value of K we should choose?
What will be the corresponding rise time (T) for step-input?
d) If we want steady-state error of step input to be 0.6, what is value of K we should
choose?
Chapter 8 Solutions
ELECTRICITY FOR TRADES (LL W/ACCESS)
Ch. 8.1 - In what way is resistance wire different from the...Ch. 8.1 - What is the trade name for the most popular type...Ch. 8.1 - Prob. 3RQCh. 8.1 - Name the three ways by which resistors are rated.Ch. 8.1 - Resistors are classified as passive devices. Why?Ch. 8.1 - Identify the type of circuit that generally...Ch. 8.1 - State two functions served by a fusible resistor.Ch. 8.1 - What advantage do film resistors have over...Ch. 8.1 - What are the two configurations for chip...Ch. 8.1 - In what way is the construction of an adjustable...
Ch. 8.1 - Compare the connection and control function of a...Ch. 8.1 - If the wiper arm of a linear potentiometer is...Ch. 8.1 - Explain how a 10-turn trim pot is adjusted.Ch. 8.1 - Compare the way the resistance varies in a linear...Ch. 8.1 - Identify the color bands for each of the following...Ch. 8.1 - A 680- resistor has a rated tolerance of 10...Ch. 8.1 - What is the color code for a 365- five-band...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.2 - Calculate the total resistance for each of the...
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