Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Textbook Question
Chapter 13, Problem 11P
For the RLC circuit in Figure 13-69, determine the resonant frequency and the cutoff frequencies.
Figure 13-69
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Please, I want the solve to the two questions, with a drawing of the equivalent circuit in the case of dc and in the case of small signal.
Q2. For the transformer shown in Fig.1,
A. Find the phase shift between the primary and star-connected secondary.
B. If the transformer is adopted in a 12-pulse diode rectifier, where a two-series
connected bridge rectifier is connected in series and supplies a highly inductive load
(i) Select a suitable turns ratio for the transformer
(ii) Plot the line current of each winding (secondary + primary).
(iii)Using Fourier analysis to obtain the Fourier series of all line currents, then calculate
the THD of the input current.
(iv) Draw the output voltage of the first and second rectifiers and give the relation of
the total output voltage.
N2
B
C
Fig. 1
N3
a
Q2.A. It is planned to use the transformer shown in Fig. 1, a 12-pulse rectifier. Each
secondary is connected to three phase controlled bridge rectifier. The two rectifiers
are connected in series to supply a highly inductive load.
1. Based on the phasor relationship between different windings. If suitable turns
ratio is selected, is it possible to use this transformer to produce 12 pulse
output voltage? Show the reason behind your answer.
2. Assuming this arrangement is possible to be used in 12-pulse rectifier, draw
the output voltage of the 1st and 2nd rectifier and give the relation of the total
output voltage.
3. Use the Fourier analysis to show the harmonics in all line currents of the
transformer.
A
B
in
C
Fig. 1
b
la
a
2
b.
Chapter 13 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 13 - A series RLC circuit can have a higher voltage...Ch. 13 - The impedance of a series RLC circuit is dependent...Ch. 13 - Above the resonant frequency, series resonant...Ch. 13 - Prob. 4TFQCh. 13 - Prob. 5TFQCh. 13 - The upper and lower cutoff frequencies of a...Ch. 13 - Prob. 7TFQCh. 13 - The Q of a band-pass filter does not affect the...Ch. 13 - Prob. 9TFQCh. 13 - Prob. 10TFQ
Ch. 13 - Prob. 1STCh. 13 - The phase angle of a series RLC circuit at...Ch. 13 - The impedance at the resonant frequency of a...Ch. 13 - In a series RLC circuit that is operating below...Ch. 13 - Prob. 5STCh. 13 - Prob. 6STCh. 13 - Prob. 7STCh. 13 - Prob. 8STCh. 13 - Prob. 9STCh. 13 - Prob. 10STCh. 13 - Prob. 11STCh. 13 - Prob. 12STCh. 13 - A certain series RLC circuit operates at a...Ch. 13 - Find the impedance in Figure 13-66.Ch. 13 - If the frequency of the source voltage in Figure...Ch. 13 - For the circuit in figure 13-66, find Itot,VR,VL,...Ch. 13 - Draw the voltage phasor diagram for the circuit in...Ch. 13 - Analyze the circuit in Figure 13-67 for the...Ch. 13 - For the circuit in Figure 13-66, is the resonant...Ch. 13 - For the circuit in Figure 13-68, determine the...Ch. 13 - Find XL,XC,Z, and I at the resonant frequency in...Ch. 13 - A certain series resonant circuit has a maximum...Ch. 13 - For the RLC circuit in Figure 13-69, determine the...Ch. 13 - What is the value of the current at the half-power...Ch. 13 - Determine the resonant frequency for each filter...Ch. 13 - FIGURE 13-70 Assuming that the coils in Figure...Ch. 13 - Determine fr and BW for each filter in Figure...Ch. 13 - Find the total impedance of the circuit in Figure...Ch. 13 - Is the circuit in Figure 13-72 capacitive or...Ch. 13 - For the circuit in Figure 13-72, find all the...Ch. 13 - Find the total impedence for the circuit in Figure...Ch. 13 - What is the impedance of an ideal parallel...Ch. 13 - Prob. 21PCh. 13 - How much current is drawn from the source in...Ch. 13 - At resonance, XL=2K and RW=25 in a parallel...Ch. 13 - If the lower cutoff frequency is 2400 Hz and the...Ch. 13 - In a certain resonant circuit, the power to the...Ch. 13 - What values of L and C should be used in a tank...Ch. 13 - Prob. 27PCh. 13 - A parallel resonant band-stop filter is needed to...Ch. 13 - Prob. 29PCh. 13 - Prob. 30PCh. 13 - Prob. 31PCh. 13 - Determine whether there is a value of C that will...Ch. 13 - If the value of C is 0.22F, how much current is...Ch. 13 - Determine the resonant frequencies in Figure 13-77...Ch. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Open file P13-42. Determine if there is a fault...Ch. 13 - Prob. 43P
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