A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a semiconductor device that uses gate voltage to control whether a conductive channel is formed, thereby enabling precise control of drain current. Its core principle is based on the field effect, where an inversion layer is formed beneath the gate to act as the conductive channel, allowing current to flow between the source and drain.
With its strong control characteristics and application flexibility, MOSFETs are widely used in power management, switching control, and various electronic circuit designs.
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