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Find the expression for peak capacitor voltage in case of a current commutated chopper circuit.

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in Power Electronics by (27.1k points)
Find the expression for peak capacitor voltage in case of a current commutated chopper circuit.

(a) Io √(L/C)

(b) Vs + √(L/C)

(c) Vs + Io √(L/C)

(d) Zero

I got this question in my homework.

My doubt is from Thyristor Chopper Circuits-3 in portion Choppers of Power Electronics

1 Answer

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by (45.1k points)
The correct choice is (c) Vs + Io √(L/C)

The best explanation: 1/2 CVc^2 = 1/2 LIo^2

Vc = Io √(L/C)

Vc (peak) = Vs + Io √(L/C).

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