EXAMIANS
Which of the following is disadvantage of fast recovery diodes?
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If the anode current is 800 A, then the amount of current required to turn off the GTO is about
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The latching current of GTO should be of order
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The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is
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A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n
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During gate recovery time
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60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is
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The triac is ___________.
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Practical way of obtaining static voltage equalization in series connected SCRs is by the use of
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A UJT has ___________.
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