For the power semiconductor devices: IGBT, MOSFET, Diode and Thyristor, which one of the following statements is TRUE?Select one:a. Only MOSFET and IGBT are Minority carrier devicesb. All of the four are Minority Carrier devicesc. Only MOSFET is a majority carrier device, whereas rest are minority carrier devicesd. All of the four are Majority Carrier devices
Question
For the power semiconductor devices: IGBT, MOSFET, Diode and Thyristor, which one of the following statements is TRUE?Select one:a. Only MOSFET and IGBT are Minority carrier devicesb. All of the four are Minority Carrier devicesc. Only MOSFET is a majority carrier device, whereas rest are minority carrier devicesd. All of the four are Majority Carrier devices
Solution
The correct answer is c. Only MOSFET is a majority carrier device, whereas the rest are minority carrier devices.
Here's why:
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IGBT (Insulated Gate Bipolar Transistor): This is a minority carrier device. It is a type of transistor that uses both majority and minority carriers, but the operation is dominated by the minority carriers.
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MOSFET (Metal Oxide Semiconductor Field Effect Transistor): This is a majority carrier device. It operates by the movement of majority carriers only.
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Diode: This is a minority carrier device. It operates by the movement of both majority and minority carriers, but the operation is dominated by the minority carriers.
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Thyristor: This is also a minority carrier device. It operates by the movement of both majority and minority carriers, but the operation is dominated by the minority carriers.
So, the statement "Only MOSFET is a majority carrier device, whereas the rest are minority carrier devices" is true.
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