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Power ElectronicsPWM Inverters

An output filter at a PWM inverter is mainly used to?

  • AAttenuate switching-frequency harmonics
  • BIncrease semiconductor layer count
  • CGenerate gate pulses
  • DEliminate the DC source
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Correct Answer: A. Attenuate switching-frequency harmonics
Explanation: The filter passes the desired low-frequency fundamental while reducing high-frequency switching components.
Reference: Standard power electronics: pwm inverters
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