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High motor efficiency, lower torque ripple, close to ideal sinusoidal motor current waveform, smaller filter size, etc. are a few of the advantages of using high-frequency pulsewidth modulaton (PWM) (in the range of 50 to 100 kHz) in motor drive applications. However, higher frequency PWM is also associated with voltage reflection and motor insulation breakdown issues. Due to high losses, Si IGBT-based...
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