MOSFET Working Principle: How It Works and Its Applications Explained

MOSFET Working Principle: How It Works and Its Applications Explained

The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is one of the most widely used semiconductor devices in modern electronics. It plays a crucial role in switching and amplification applications in fields such as power electronics, microprocessors, and RF circuits. MOSFETs offer high efficiency, fast switching speeds, and low power dissipation, making them an essential component in many applications. What is a MOSFET? A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a three-terminal semiconductor device that controls the flow of current using an electric field. It is a voltage-controlled device where the current between the drain and source terminals is regulated by the voltage applied to the gate terminal. Structure of a MOSFET A MOSFET consists of four main terminals: Gate (G): Controls the channel conductivity. Drain (D): The terminal through which current exits. Source (S): The terminal through which current enters. Body (B): The substrate to which the MOSFET is…