Latching current for an SCR is 100 mA, a dc source of 200 V is also connected to the SCR which is supplying an R-L load. Compute the minimum width of the gate pulse required to turn on the device. Take L = 0.2 H & R = 20 ohm both in series. - Study24x7
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Karan Singh
18 Apr 2019 12:07 PM study24x7 study24x7

 Latching current for an SCR is 100 mA, a dc source of 200 V is also connected to the SCR which is supplying an R-L load. Compute the minimum width of the gate pulse required to turn on the device. Take L = 0.2 H & R = 20 ohm both in series.
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A

62.7 μsec

B

100.5 μsec

C

56.9 μsec

D

81 μsec

IIT-JEE Sciences
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  • geet sharma
    • E = Ri + L di/dt
    Solve the above D.E for I & substitute the above values.
    t = 100.503 μsec.

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    Reply 18 Apr 2019 12:24 PM
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