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针对IGBT逆变弧焊机可靠性问题讨论 ,提出了采用电流型PWM控制电路逐个脉冲进行检测的控制方法。试验结果表明 :该控制方法具有控制线路简单 ,可靠性高的特点。
In view of the reliability of IGBT inverter arc welding machine, a control method of detecting current pulse by pulse is proposed. The test results show that the control method has the characteristics of simple control circuit and high reliability.