MOSFETs

When designing switching power supplies or motor drive circuits using MOS transistors, most people consider the conduction resistance, maximum voltage, maximum current, etc. of MOS, and many people only consider these factors. Such a circuit may work, but it is not excellent, and as a formal product design, it is also not allowed.

Below is my summary of the basics of MOSFETs and MOSFET driver circuits, which refers to some materials, not all of which are original. Including the introduction, characteristics, driver, and application circuits of MOS transistors.

MOS transistor types and structures

MOSFET transistor is a type of FET (another type is JFET) that can be manufactured into either enhanced or depleted types. There are four types of P-channel or N-channel, but the actual applications are only enhanced N-channel MOS transistors and enhanced P-channel MOS transistors. Therefore, NMOS or PMOS is commonly referred to as these two types