焊接与切割设备的使用和维修(二十九)——IGBT逆变式弧焊机的电路原理

Usage and maintenance of welding and cutting machines(29)——Circuit principle of IGBT inverter arc welding machine

通过GTR、MOSFET、IGBT三者的特性比较,介绍了它们的特点;详细描述了IGBT的特性以及逆变器的电路原理。

By comparing the characteristic of GTR,MOSFET and IGBT,this paper illuminates IGBT's characteristic in detail,and introduces the principle of inverter.