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In a power MOSFET, pinch-off occurs when (VDS is the drain to source voltage, VGS is the gate to source voltage VT is the threshold voltage):

In a power MOSFET, pinch-off occurs when (VDS is the drain to source voltage, VGS is the gate to source voltage VT is the threshold voltage): Correct Answer V<sub>DS </sub>= V<sub>GS</sub> - V<sub>T</sub>

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As shown in the above figure in a power MOSFET, pinch-off occurs when VDS = VGS - VT

Where, VDS = Drain to source voltage

​VGS = Gate to source voltage

VT = Threshold voltage

  • In power MOSFET when VDS < VGS - VT, then power MOSFET works in the triode region.
  • In power MOSFET when VDS > VGS - VT, then power MOSFET works in the saturation region.

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