EBK POWER SYSTEM ANALYSIS AND DESIGN
6th Edition
ISBN: 9781305886957
Author: Glover
Publisher: CENGAGE LEARNING - CONSIGNMENT
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".I need the correct answers with explanations"
Answer True or False, then correct errors or explain if any:
1. The term pole in filter terminology refers to the feedback circuit.
2, A voltage shunt feedback with Ai-10, A-20, p 0.45, then Aif will be 1.
3. The integrator Op-Amp circuit can be used to produce square waves.
4. The equivalent circuit of the crystal oscillator is series and parallel (R, C) components.
5. The transistor in a class A power amplifier conducts for the entire input cycle.
6. Bypass capacitors in an amplifier determine the low and high-frequency responses.
7. The midrange voltage gain of an amplifier is 100. The input RC circuit has a lower critical
frequency of 1 kHz. The actual voltage gain at f-100 Hz is 100.
8. The Bessel filter types produce almost ripple frequency response.
9. RC phase shift oscillators are based on both positive and negative feedback circuits.
10. In a high-pass filter, the roll-off region occurs above the critical frequency.
".I need the correct answers with explanations"
Answer True or False and correct errors if found:
Marks)
1. The LC oscillator circuits are used to operate in low and moderate frequencies.
2. The voltage series feedback can increase both input and output impedances.
3. A two-pole Sallen-Key high-pass filter contains one capacitor and two resistors.
4. The main feature of a crystal oscillator is the high frequency operation that operates with
optoelectronic effect.
5. The max. efficiency of the class B power amplifier is 50%.
6. The Q-point must be centered on the load line for maximum class AB output signal swing.
7. The differentiator Op-Amp can convert the triangle waveform into sinewave.
8. Class AB power amplifier eliminates crossover distortion found in pure class A.
9. RC-phase shift oscillators are based on positive feedback circuits.
10. Bypass capacitors in an amplifier determine the low and high-frequency responses.
K
Q2/A For the system G(s)=
H(s)=1
9
(s+5)(s+2 )(s+5)
a. Draw the Bode log-magnitude and phase plots.
b. Find the range of K for stability from your Bode plots.
c. Evaluate gain margia, phase margin, zero dB frequency, and 180°
frequency from your Bode plots for K = 10,000.
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