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MOSFET

 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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