What is the reason why a discharge resistor must be set for MOS switch applications?
MOS transistor is a special driving circuit (commutation circuit) used as a switching transistor. Compared with ordinary transistor, MOS transistor has many advantages. However, when applied as a high-power switch transistor, due to the capacitive input characteristics of MOS transistor, the input terminal of MOS transistor is equivalent to a small capacitor. The input switch excitation signal is actually in the process of repeatedly charging and discharging this capacitor. During the charging and discharging process, the MOS transistor conducts and closes with a lag, which slows down the process of "on" and "off", which is not allowed by the switching element (increased power consumption, burning out the switch transistor).
What are the differences and advantages between MOS (Metal Oxide Semiconductor Field Effect Transistor) and transistors? This article provides a detailed introduction.
The following text introduces the symbol rules for N-MOS voltage polarity and P-MOS voltage polarity respectively
The full English name of MOSFET is MOSFET (Metal Oxide Semiconductor Field Effect Transistor), which refers to the insulated gate type of MOSFET. Therefore, MOS transistors are sometimes referred to as insulated gate field-effect transistors. In general electronic circuits, MOS transistors are commonly used in amplifier circuits or switch circuits.