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A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is
60.
37.14.
3.714.
65.
60.
37.14.
3.714.
65.
Answer
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Related Question
Power Electronics
Under normal operating condition voltage clamping device offers impedance of
low value.
zero value.
moderate value.
high value.
low value.
zero value.
moderate value.
high value.
Answer
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Power Electronics
Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H.
300 µs.
150 µs.
200 µs.
100 µs.
300 µs.
150 µs.
200 µs.
100 µs.
Answer
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Power Electronics
How can we protect SCR from thermal conditions ?
Using CB and fuse.
Using equalizing circuit.
Using heat sink.
Use of snubber circuit.
Using CB and fuse.
Using equalizing circuit.
Using heat sink.
Use of snubber circuit.
Answer
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Power Electronics
The function of snubber circuit connected across the SCR is to
increase dV / dt.
decrease dV / dt.
suppress dV / dt.
decrease di / dt.
increase dV / dt.
decrease dV / dt.
suppress dV / dt.
decrease di / dt.
Answer
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Power Electronics
What is used to protect a thyristor from high di / dt conditions?
Fuse.
Voltage clamping device.
Snubber circuit.
Inductor.
Fuse.
Voltage clamping device.
Snubber circuit.
Inductor.
Answer
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