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A voltage commutated chopper has the following parameters :
Vs = 200 V,
Load circuit parameter 1 Ω, 2mH, 5V.
Commutation circuit parameter :
L = 25 H, C = 50 F.
For constant load current at 100 A, the effective ON period and peak current through the main thyristor are respectively
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- 1000 s, 200 A
- 700 s, 382.8 A
- 700 s, 282.8 A
- 1000 s, 382.8 A
Correct Option: B
| Peak current = Io + Vs |  | = 100 + 200 |  |
= 382.8 A
Effective on period = π √LC
= 3.14 √25 × 50 × 10-6 = 700 s
