GATE 2023 Power electronics Rank Booster Quiz 50

The circuit shown below, the conduction time of T is _______(μsec).

Assume: L = 1 mH, I_L(0^–) = 0 A, C = 1 μF and V_C(0^–) = 100 V

A voltage commutated chopper operating at 1 kHz is used to Control the speed of dc motor as shown in figure. The load current is assumed to be constant at 10 A

For the following circuit:

The switch is closed at t = 0, the capacitor has initially charged to 50 V polarity as shown in the figure above. Find the peak value of diode current______ A.

The circuit employing class C commutation has V_s= 200V, R₁ = 100 Ω, R₂ = 150Ω. The peak current through thyristor T₁ is ___?

Consider the circuit shown in the figure below. The following parameters of the circuit are C = 30 μF, and L = 3 μH. The initially capacitor voltage is equal to the source voltage, V_S = 230 dc. Determine the circuit turn-off time (in μsec) for main thyristor in case constant load current of 200 A _________.