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Achiever Study Plan ESE-2018:Power Electronics Quiz 1

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Question 1

A Power Diode is used where:

Question 2

The latching current of a thyristor circuit show in figure is 25 mA. The duration of the firing pulse is gives as 25μs. If the thyristor does not get fired, the circuit current value (in mA) computed for the given parameters is _______.

Question 3

Circuit turn-off time of an SCR is defined as the time

Question 4

In triac circuit, two thyristors are connected in reverse parallel:

Question 5

The main reason for connecting a pulse transformer at the output stage of a thyristor triggering circuit is to
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Jun 29ESE & GATE EE