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Power Electronics

Power Electronics
The latching current of GTO should be of order

 1 A.
 2 A.
 100 mA.
  500 mA.

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Power Electronics
During reverse recovery time

  both B and C.
 charge carrier of junction J3 is swept out.
 charge carrier of junction J2 recombined.
 charge carrier of junction J1 is swept out.

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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

 600 A.
 400 A.
 20 A.
  200 A.

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Power Electronics
The device that does not have the gate terminal is ___________.

FET
Triac
Diac
SCR

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Power Electronics
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

  135 μs.
 130 μs.
 145 μs.
 140 μs.

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Power Electronics
A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is

  0.45.
  0.67.
  0.27.
  0.32.

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