Question

What are the two main types of MOSFETs?

Answer 1

The two main types of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are:

1. N-channel MOSFET (NMOS):
   

   - In an N-channel MOSFET, the majority charge carriers are electrons (which are negative).
   - It is turned on when a positive voltage is applied to the gate relative to the source. This creates a channel of electrons between the source and drain, allowing current to flow.

1. P-channel MOSFET (PMOS):
   

   - In a P-channel MOSFET, the majority charge carriers are holes (which are positive).
   - It is turned on when a negative voltage is applied to the gate relative to the source, creating a channel of holes between the source and drain, allowing current to flow.

In simple terms, NMOS uses electrons to conduct current and is activated by a positive voltage, while PMOS uses holes and is activated by a negative voltage.