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What is the expression for design of commutation capacitance in case of a load commutated chopper circuit?

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in Power Electronics by (27.1k points)
What is the expression for design of commutation capacitance in case of a load commutated chopper circuit?

(a) (I x Ton)/Vs

(b) Cannot be determined

(c) (I x Ton)/2Vs

(d) (I x T)/Vs

This question was posed to me by my school teacher while I was bunking the class.

The above asked question is from Thyristor Chopper Circuits-3 in chapter Choppers of Power Electronics

1 Answer

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by (45.1k points)
Right choice is (c) (I x Ton)/2Vs

The explanation is: Total change in the voltage is 2xVs in time T^on.

I = C x (2Vs/ Ton)

C = (IxTon)/2Vs.

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