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Power Electronics
Dynamic equalizing circuit is used for
equal division of voltage across each thyristor in parallel.
equal division of current through each thyristor in parallel.
equal division of voltage across each thyristor.
equal division of current through each thyristor in series.
equal division of voltage across each thyristor in parallel.
equal division of current through each thyristor in parallel.
equal division of voltage across each thyristor.
equal division of current through each thyristor in series.
Answer
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Related Question
Power Electronics
The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant
SCR
UJT
None of these
Transistor
SCR
UJT
None of these
Transistor
Answer
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Power Electronics
In a P1N1P2N2 thyristor which layer is less doped ?
N2.
P1.
N1.
P2.
N2.
P1.
N1.
P2.
Answer
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Power Electronics
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.
65.
37.14.
3.714.
60.
65.
37.14.
3.714.
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.
100 µs.
150 µs.
200 µs.
300 µs.
100 µs.
150 µs.
200 µs.
Answer
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Power Electronics
When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ?
Voltage clamping device.
Fast acting current limiting device (FACL fuse).
CB.
Snubber circuit.
Voltage clamping device.
Fast acting current limiting device (FACL fuse).
CB.
Snubber circuit.
Answer
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