A MOSFET is a type of field-effect transistor (FET) that is widely used for switching and amplifying electronic signals in both digital and analog circuits. It is a voltage-controlled device, meaning the current flow between its terminals is controlled by an applied voltage.
The Insulated Gate Bipolar Transistor (IGBT) is a three-terminal power semiconductor device that combines the advantages of MOSFETs (high-speed switching and voltage control) and BJTs (low conduction losses and high current capability).