The Thyristor shown in the following figure has a latching current of 50 mA and is...

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The Thyristor shown in the following figure has a latching current of 50 mA and is fired by a pulse of duration 50 us. The firing pulse is applied after 0.1 s form connecting the switch. Show that without resistor R, the thyristor will fail to remain ON when the firing pulse ends, and then find the maximum value of R to insure the firing. Neglect the Thyristor voltage drop. Plot the load voltage waveform versus supply voltage for 0.5 s time. V, 100 V Solution t=0 T 2052 0.5 H 1 R The Thyristor shown in the following figure has a latching current of 50 mA and is fired by a pulse of duration 50 us. The firing pulse is applied after 0.1 s form connecting the switch. Show that without resistor R, the thyristor will fail to remain ON when the firing pulse ends, and then find the maximum value of R to insure the firing. Neglect the Thyristor voltage drop. Plot the load voltage waveform versus supply voltage for 0.5 s time. V, 100 V Solution t=0 T 2052 0.5 H 1 R

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