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Power MOSFET is ________device.
  • a)
    Current controlled bipolar
  • b)
    Current controlled unipolar
  • c)
    Voltage controlled bipolar
  • d)
    Voltage controlled unipolar
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Power MOSFET is ________device.a)Current controlled bipolarb)Current c...
Power MOSFET is Voltage controlled unipolar device.
Power MOSFET has lower switching losses but its on-resistance and conduction losses are more. MOSFET is a voltage-controlled device whereas BJT is a current-controlled device.
MOSFET has a positive temperature coefficient for resistance. This makes the parallel operation of MOSFETs easy. If MOSFET shares increased current initially, it heats up faster, its resistance rises, and this increased resistance causes this current to shift to other devices in parallel. In MOSFET, secondary breakdown does not occur, because it has a positive temperature coefficient.
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Power MOSFET is ________device.a)Current controlled bipolarb)Current controlled unipolarc)Voltage controlled bipolard)Voltage controlled unipolarCorrect answer is option 'D'. Can you explain this answer?
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