The 100Ω resistance is added to the front of the MOSFET gate to limit transient current and high-frequency noise and avoid damaging the MOSFET and other circuits. The resistor can limit the grid current while increasing the steady state voltage of the grid. Generally, the recommended resistance value of the gate driver IC is 100Ω to 1 kω, and the specific value is determined according to the application scenario and the IC manual. If the resistance is too small, it may cause excessive peak current, noise interference, and high temperature, which can damage electronic devices.