Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Textbook Question
Chapter 13, Problem 10SQ
How is it possible for the miscroswitch to change contact position with such a small amount of movement of the activating arm?
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Find the power delivered across the 10 ohm resistor
For the Circuit Below Find:
A) io in terms of Rb and the numerical resistor values provided in the schematic. Reduce your
solution to a minimal Equations
B)the power delivered across Rb in terms of Rb and the numerical resistor values provided in the
schematic. Reduce your solution to a minimal equation.
C) the power delivered across Rc if Rb is 5 Q
Ra $50
15Ω
M
120
90V
+1
Rb
150 150
m
Rc
Problems
A.1 The square-law modulator is a device for the generation of DSB-PC-AM signals. In the square-law modulator, the sum of the modulating signal and the carrier wave
forms the input signal to a nonlinear device. The output signal of the nonlinear device is a linear combination of the input signal and the square of the input signal. The
output signal of the nonlinear device is then band-pass filtered. The BPF has a center frequency that is the same as the carrier frequency and a bandwidth that is twice
the message bandwidth. Show the output of the BPF is a DSB-PC-AM signal, and determine a requirement between the carrier frequency and the message bandwidth
that must be satisfied.
Chapter 13 Solutions
Electric Motor Control
Ch. 13 - Draw a simple circuit showing how a red pilot...Ch. 13 - Prob. 2SQCh. 13 - What is the advantage of a photodiode in a...Ch. 13 - What type of photodetector is often used in...Ch. 13 - What do Hall effect sensors detect?Ch. 13 - Hall effect sensors do not depend on...Ch. 13 - Prob. 7SQCh. 13 - Prob. 8SQCh. 13 - Prob. 9SQCh. 13 - How is it possible for the miscroswitch to change...
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