# Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.

Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.

done_all

MOSFET is metal oxide field effect transistor. MOSFET is a voltage controlled device. MOSFET is majority carrier device. MOSFET are of two one is n-channel MOSFET and p-channel MOSFET. Gate, drain, and source are the three terminals of MOSFET. The current flows from drain to source when the voltage is applied between gate to the source terminal. The current between gate to source is very small. The active region, cutoff region, and ohmic region are the three regions in MOSFET. MOSFET goes in an ohmic region when the gate to source voltage is larger and drain to source voltage is small.

The ohmic region is also called as triode region. In the ohmic region, the MOSFET behaves like a small voltage controlled resistor. In the ohmic region, power dissipation is kept low by minimizing drain to source voltage even if the drain to source voltage is fairly large. Hence, power MOSFET is operated at high enough gate-source voltage to minimize the conduction losses.

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Description :

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Description :

Answer : Because it has a higher switching frequency and heat tolerance.

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Answer : A network that consists of at least a voltage source or current source is called Active network

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Answer : Power MOSFET have high turning on and turning off capability high switching speed of MOSFET is due to the high rate of change of drain voltage. The switching losses of power MOSFET ... lower frequency. Hence, operating frequency of power MOSFET is higher than that of power BJT.

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Description :

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Description :

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Description :

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Answer : An ideal voltage source has zero internal resistance.

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Answer : An ideal voltage source should have zero source resistance.

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Description :

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Description :

Answer : MOSFET have high current losses due to High on state resistance. Hence MOSFET is used for low power applications.

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Answer : The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc.

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Description :

Why high voltage is used in power transmission?

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Description :

Answer : MOSFET provides better efficiency at high frequency and its high speed switching losses are less hence MOSFET is used for high frequency.

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A 3-phase voltage source inverter is operated in 180o conduction mode. Which one of the following statements is true ?

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Description :

Answer : Yes MOSFET can operate at very high frequency.

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Answer : basic gate drive circuit of GTO

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