Research on Full Welding Purpose IGBT Inverter Based on Digital Control System
In this paper,a kind of unit separating inverter system controlled by MCU based on 80C196KC is discussed,which can achieve MMA,spot,carbon gauge,TIG,and CO2/MIG/MAG welding purpose.Through flexible digital PID arithmetic,the MCU system can generate the different feature curves to satisfy the different welding purpose.The methods of eliminating the interference to the least are put forward and they are proved to be effective in the practice.