Source inductance in a practical controlled rectifier causes commutation overlap because?

  • ACurrent transfer between devices cannot occur instantaneously
  • BGate pulses become DC
  • CLoad resistance becomes infinite
  • DSupply frequency becomes zero
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Correct Answer: A. Current transfer between devices cannot occur instantaneously
Explanation: Inductance opposes instantaneous current change, so outgoing and incoming devices conduct simultaneously for a finite overlap interval.
Reference: Standard power electronics: commutation overlap
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