Electrical Engineering: Principles & Applications (7th Edition)
7th Edition
ISBN: 9780134484143
Author: Allan R. Hambley
Publisher: PEARSON
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Specify the Nyquist rate and Nyquist intervals for the following signals:
i) 81(t) = sinc (200t) ii) 82 (t) = sinc² (200 t)
Electrical Engineering
Harmonic cancellation method is when harmonics are eliminated by processing waveforms
Full
bridge
DC/AC
converter
Vot
Va
cot
Full
bridge
DCIAC
converter
Voa
Select one:
O True
O False
C1
L1
R1
V1
Vout
V1 contains the fundamental and its harmonics (fo, 2fo, 3fo, ...). The amplitude of the
harmonics is inversely proportional to the harmonic number.
V(fo) = 10 mV
V(2fo) = 10mv/2 = 5 mV
V(3fo) = 10mv/3 = 3.33 mV
V(4fo) = 10mv/4 = 2.55 mV
a) What is the minimum value of Q for the circuit that will attenuate the third harmonic
(3fo) in Vout to be less than 1% of the fundamental?
b) What is the amplitude of the fifth harmonic (5fo) as a percentage of the fundamental?
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