Question:
In _____ type of modulation method, the pulse width is not equal for all the pulses.
In _____ type of modulation method, the pulse width is not equal for all the pulses.
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SPWM is widely used in inverters for smooth voltage control because it mimics a sine wave by modulating pulse width accordingly.
Updated On: May 4, 2025
- Multiple pulse width modulation
- Single pulse width modulation
- Trail edge modulation
- Sinusoidal pulse width modulation
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The Correct Option is D
Solution and Explanation
In Sinusoidal Pulse Width Modulation (SPWM), the pulse widths vary according to a sine wave reference. The widths are not uniform—they follow the sinusoidal waveform, resulting in better harmonic performance and efficient modulation. This differentiates SPWM from other techniques like multiple PWM, where pulse widths can be equal or vary differently.
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