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7) The ripple of the output voltage from the DC-DC switch mode converters: a) inversely proportional with the switching frequency of the switches. b) does not depend on the inductance of the DC-DC converter. c) inversely proportional with its parallel capacitor. d) is reduced if the ripple in the current is reduced. e) all of the above. 17 c+d 8) The main differences between the PWM Unipolar Voltage Switching (UVS) and PWM of Bipolar Voltage Switching (BVS) full-bridge DC-DC converters are: a) UVS uses one control signal. (b), UVS can be used as inverter. BVS uses only the diagonal switches as on-states. d) all of the above. e) bre. 9) In AC motor drive system, a) the power is bidirectional if the rectifier circuit is uncontrolled. b) the input is DC power and the output is variable frequency and variable magnitude. c) the input is unregulated AC power and the output is controlled AC power. d) the input is fixed voltage fixed frequency and the output is both variable frequency and voltage. b+d. 3 Me+d

7) The ripple of the output voltage from the DC-DC switch mode converters: a) inversely proportional with the switching frequency of the switches. b) does not depend on the inductance of the DC-DC converter. c) inversely proportional with its parallel capacitor. d) is reduced if the ripple in the current is reduced. e) all of the above. 17 c+d 8) The main differences between the PWM Unipolar Voltage Switching (UVS) and PWM of Bipolar Voltage Switching (BVS) full-bridge DC-DC converters are: a) UVS uses one control signal. (b), UVS can be used as inverter. BVS uses only the diagonal switches as on-states. d) all of the above. e) bre. 9) In AC motor drive system, a) the power is bidirectional if the rectifier circuit is uncontrolled. b) the input is DC power and the output is variable frequency and variable magnitude. c) the input is unregulated AC power and the output is controlled AC power. d) the input is fixed voltage fixed frequency and the output is both variable frequency and voltage. b+d. 3 Me+d

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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7) The ripple of the output voltage from the DC-DC switch mode converters: a) inversely proportional with the switching frequency of the switches. b) does not depend on the inductance of the DC-DC converter. c) inversely proportional with its parallel capacitor. d) is reduced if the ripple in the current is reduced. e) all of the above. 17 c+d. 8) The main differences between the PWM Unipolar Voltage Switching (UVS) and PWM of Bipolar Voltage Switching (BVS) full-bridge DC-DC converters are: a) UVS uses one control signal. b), UVS can be used as inverter. BVS uses only the diagonal switches as on-states d) all of the above. e) bre. 9) In AC motor drive system, a) the power is bidirectional if the rectifier circuit is uncontrolled. b) the input is DC power and the output is variable frequency and variable magnitude. c) the input is unregulated AC power and the output is controlled AC power. d) the input is fixed voltage fixed frequency and the output is both variable frequency and voltage e) b+d. e+d. 10) The "Four Quadrant Operation" principle: a) implies that the power is bidirectional. b) indicates the regenerative braking principle of AC motor drive system. c) as applied on all types of DC-DC converters. d) allows for all possible combinations of the signs of the output voltage and current. e) all of above. a+b+d 11) Three-phase full-bridge inverter: a) uses three-sinudoidal control voltage waveforms. b) has six switches which necessitates six switching pulses. c) produces three-phase balanced voltages if the control voltages are balanced. d) does not produce harmonic components if PWM technique is used. a+b+d a+b+c. 12) The commutation interval in controlled and uncontrolled rectifier circuits: a) resulted from the highly inductive loads. b) resulted from the series inductance of the source. c) reduces the average value of the output DC voltage. all of the above. e) btc. f) ate.
Transcribed Image Text:7) The ripple of the output voltage from the DC-DC switch mode converters: a) inversely proportional with the switching frequency of the switches. b) does not depend on the inductance of the DC-DC converter. c) inversely proportional with its parallel capacitor. d) is reduced if the ripple in the current is reduced. e) all of the above. 17 c+d. 8) The main differences between the PWM Unipolar Voltage Switching (UVS) and PWM of Bipolar Voltage Switching (BVS) full-bridge DC-DC converters are: a) UVS uses one control signal. b), UVS can be used as inverter. BVS uses only the diagonal switches as on-states d) all of the above. e) bre. 9) In AC motor drive system, a) the power is bidirectional if the rectifier circuit is uncontrolled. b) the input is DC power and the output is variable frequency and variable magnitude. c) the input is unregulated AC power and the output is controlled AC power. d) the input is fixed voltage fixed frequency and the output is both variable frequency and voltage e) b+d. e+d. 10) The "Four Quadrant Operation" principle: a) implies that the power is bidirectional. b) indicates the regenerative braking principle of AC motor drive system. c) as applied on all types of DC-DC converters. d) allows for all possible combinations of the signs of the output voltage and current. e) all of above. a+b+d 11) Three-phase full-bridge inverter: a) uses three-sinudoidal control voltage waveforms. b) has six switches which necessitates six switching pulses. c) produces three-phase balanced voltages if the control voltages are balanced. d) does not produce harmonic components if PWM technique is used. a+b+d a+b+c. 12) The commutation interval in controlled and uncontrolled rectifier circuits: a) resulted from the highly inductive loads. b) resulted from the series inductance of the source. c) reduces the average value of the output DC voltage. all of the above. e) btc. f) ate.
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