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Questions and Answers
What is varied in pulse width modulation?
What is varied in pulse width modulation?
- The amplitude of the analog signal
- The active portion of the duty cycle (correct)
- The frequency of the pulse
- The inactive portion of the duty cycle
What does the term 'width' refer to in pulse width modulation?
What does the term 'width' refer to in pulse width modulation?
- The inactive portion of the duty cycle
- The active portion of the duty cycle (correct)
- The amplitude of the analog signal
- The frequency of the pulse
What is the amplitude of the constant amplitude pulse varied proportional to in pulse width modulation?
What is the amplitude of the constant amplitude pulse varied proportional to in pulse width modulation?
- The amplitude of the analog signal (correct)
- The voltage level of the pulse
- The inactive portion of the duty cycle
- The frequency of the pulse
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Study Notes
Pulse Width Modulation (PWM)
- In Pulse Width Modulation (PWM), the width of the pulses is varied.
- The term 'width' in PWM refers to the duration of the pulses.
- The amplitude of the constant amplitude pulses is not varied, but the width of the pulses is varied proportional to the amplitude of the modulating signal.
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