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介绍了多功能IGBT逆变式弧焊机控制电路的设计思想和硬件结构,重点分析了TIG焊恒流内拐式外特性、手弧焊恒流阶梯外拖式外特性、脉冲焊接电流及程序控制电路的工作原理。
The design idea and hardware structure of the control circuit of multi-functional IGBT inverter arc welding machine are introduced. The external characteristics of constant current internal arc, the external characteristics of hand arc arc constant current ladder, the pulse welding current and program Control circuit works.