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The drawback of the matrix converter is its

  • A.requirement for a very large dc link capacitor
  • B.inability to pass power in the reverse direction
  • C.inability to control the output frequency
  • D.limited output voltage and complex commutation

Answer: D

The output cannot exceed about eighty-six per cent of the input voltage, and commutating between bidirectional switches without shorting the supply or open-circuiting the load needs careful multi-step sequencing. Those two obstacles have kept it out of general use.

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