A microcomputer controlled IGBT inverter power source for pulsed MIG welding is developed.It realizes the self adaptive control and closed loop control of arc voltage in pulsed MIG welding process.

• 建立了微机控制和IGBT逆变式脉冲MIG焊电源系统，实现了MIG焊接过程弧压自适应闭环控制。