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Question

How Does a MOSFET act as An Amplifier?


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Solution

  1. A MOSFET amplifier is one that makes use of Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) technology. One type of insulated-gate field-effect transistor is the MOSFET, often known as the MOS (metal-oxide-silicon) transistor.
  2. The MOSFET functions as a switch, regulating the flow of current and voltage between the source and drain. The MOS capacitor, which is the semiconductor surface below the oxide layers between the source and drain terminal, is what makes MOSFETs function.
  3. As with JFET (junction-gate field-effect transistor), a little change in gate voltage results in a significant change in drain current because of this, the MOSFET will operate as an amplifier by amplifying a weak signal.
  4. The command signal in this amplifier is a gate signal that regulates the flow of current between the Source (S) and the Drain (D).

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