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Power Electronics

Power Electronics
Thyristor can be protected from over voltages by using

 fuse.
  voltage clamping device.
 heat sink.
 snubber circuit.

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Power Electronics
If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR?

  3.3 µs
 3 µs.
 3.2 µs
 3.1 µs

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Power Electronics
SCRs are used in series to meet

  high voltage demand.
 high current demand.
 low voltage demand.
 low current demand.

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Power Electronics
Power transistor are type of

 IGBTs.
 BJTs.
  All of above.
 MOSFETs.

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Power Electronics
If the anode current is 800 A, then the amount of current required to turn off the GTO is about

 400 A.
 20 A.
 600 A.
  200 A.

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Power Electronics
COOLMOS device can be used in application up to power range of

  2 KVA.
 100 KVA.
 500 VA.
 1 KVA.

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