For the power semiconductor devices: IGBT, MOSFET, Diode and Thyristor, which one of the following statements is TRUE?Select one:a. All of the four are Minority Carrier devicesb. Only MOSFET is a majority carrier device, whereas rest are minority carrier devicesc. All of the four are Majority Carrier devicesd. Only MOSFET and IGBT are Minority carrier devices
Question
For the power semiconductor devices: IGBT, MOSFET, Diode and Thyristor, which one of the following statements is TRUE?Select one:a. All of the four are Minority Carrier devicesb. Only MOSFET is a majority carrier device, whereas rest are minority carrier devicesc. All of the four are Majority Carrier devicesd. Only MOSFET and IGBT are Minority carrier devices
Solution
The correct answer is b. Only MOSFET is a majority carrier device, whereas rest are minority carrier devices.
Here's why:
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IGBT (Insulated Gate Bipolar Transistor): It is a minority carrier device. It uses both minority and majority carriers for its operation. The minority carriers give it the ability to handle high voltages.
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MOSFET (Metal Oxide Semiconductor Field Effect Transistor): It is a majority carrier device. It only uses majority carriers for its operation, which gives it high switching speed.
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Diode: It is a minority carrier device. It uses both majority and minority carriers for its operation. The minority carriers give it the ability to handle high currents.
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Thyristor: It is also a minority carrier device. It uses both majority and minority carriers for its operation. The minority carriers give it the ability to handle high voltages and currents.
So, the statement "Only MOSFET is a majority carrier device, whereas rest are minority carrier devices" is true.
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