Which statement out of the 5 is TRUE, Explain Why (50 Words) Pulse width modulation (PWM) can be used to control the speed of a DC motor. Which statement is correct? 1. The ratio of the ON-times (supply voltage) and OFF-times (zero volt) send to the terminals of a DC motor is proportional to the average of the motor acceleration. 2. PWM can be used to modulate the magnetic width of a brush-less AC motor. 3. PWM modifies the pulses sent to a motor which in turn adjust the motor torque proportionally to the pulse ratio. 4. PWM can be used to adjust the average voltage delivered by a power source. This is achieved by rapidly switching the power signal on and off. Longer on-times compared to the off times leads to a higher average power seen by the load, e.g., a DC motor.
Which statement out of the 5 is TRUE, Explain Why (50 Words) Pulse width modulation (PWM) can be used to control the speed of a DC motor. Which statement is correct? 1. The ratio of the ON-times (supply voltage) and OFF-times (zero volt) send to the terminals of a DC motor is proportional to the average of the motor acceleration. 2. PWM can be used to modulate the magnetic width of a brush-less AC motor. 3. PWM modifies the pulses sent to a motor which in turn adjust the motor torque proportionally to the pulse ratio. 4. PWM can be used to adjust the average voltage delivered by a power source. This is achieved by rapidly switching the power signal on and off. Longer on-times compared to the off times leads to a higher average power seen by the load, e.g., a DC motor.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Which statement out of the 5 is TRUE, Explain Why (50 Words)
Pulse width modulation (PWM) can be used to control the speed of a DC motor. Which
statement is correct?
1. The ratio of the ON-times (supply voltage) and OFF-times (zero volt) send to the
terminals of a DC motor is proportional to the average of the motor acceleration.
2. PWM can be used to modulate the magnetic width of a brush-less AC motor.
3. PWM modifies the pulses sent to a motor which in turn adjust the motor torque
proportionally to the pulse ratio.
4. PWM can be used to adjust the average voltage delivered by a power source.
This is achieved by rapidly switching the power signal on and off. Longer on-times
compared to the off times leads to a higher average power seen by the load, e.g., a
DC motor.
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