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  • 25-11-2022
  • Engineering
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The de source supplying a single-phase inverter with a bipolar PWM switching scheme is 99 V. The load is an R L series combination with R=30 N and L=20 mH. The output voltage has a fundamental frequency of 50 Hz. Specify amplitude modulation ratio ma to provide a 42-V rms output voltage at the fundamental frequency

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