Function: The basic function of IGBT in the inverter is to act as a high-speed contactless electronic switch. How it works: The use of IGBT switching principle, the use of control circuit to give the appropriate open, off signal, IGBT can according to your control signal to convert direct current into alternating current, direct current into alternating current voltage will be reduced, such as the train power supply system 600V DC is 380V AC rectifier, The role of the IGBT inverter driver board is to re-restore this process. At the same time, the size of the current can be controlled by controlling the pulse width of the signal, and the AC frequency can be controlled, so as to control the speed of the motor.
The letters behind each pin represent the production number of each pin, as well as the production place, these numbers are regular, you look carefully, there are also steel marks behind the drive plate, there are the same number. I hope my answer to your satisfaction!