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This paper highlights the problems associated with single pulse width modulation, the most important being high harmonic content in output voltage. A comparative study with Sinusoidal Pulse Width Modulation Technique is done highlighting the reduction in Total Harmonic Distortion of the output voltage waveform.

Keywords- Sinusoidal Pulse Width Modulation(SPWM), Total Harmonic Distortion(THD), Fast Fourier Transform(FFT) Analysis, Carrier Wave Frequency, Modulating Index(MI), Low Pass Filter(LPF).

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