MOSFET 

    Metal-Oxide-Semiconductor-Field-Effect-Transistor  is a type of field-effect transistor (FET) that acts as an electrical switch or amplifier to control the flow of electricity between drain to source and drain terminals. 

    MOSFET is a three terminal semiconductor device. Namely Gate, Drain and Source.

   MOSFET Types

MOSFET has the mainly two types

1.Enhancement mode

2.Depletion Mode

E-MOSFET 

    E-MOSFET are commonly used to transistor that act like normally open switches, meaning they do not conduct when the gate voltage is zero. When a positive voltage is applied to the gate terminal, the channel conducts and drain current flows thorough it.

Depletion mode-MOSFET

    The depletion-mode MOSFET can operate in either enhancement or depletion mode. A positive Vgs will make the depletion mode NMOS work in the enhancement mode, while a negative Vgs will make it run in the depletion mode.

    

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