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提出了一种基于DSP及STT波形控制技术的CO2焊机控制电路的设计方案,重点阐述了应用DSP实现STT波控法的原理及方法。样机测试结果表明:采用该控制电路的CO2焊机飞溅小、焊缝成形好,在不同焊接条件下都能获得良好的焊接效果。
A design scheme of CO2 welding machine control circuit based on DSP and STT waveform control technology is presented. The principle and method of implementing STT wave control method by DSP are emphatically described. The prototype test results show that the CO2 welding machine with this control circuit has the advantages of small splashing, good weld formation and good welding effect under different welding conditions.