Secondly, the method and process of the design of fuzzy controller in which welding current error and the changing rate of welding current error is used as fuzzy inputs, and the increment of the controlling angle of SCR as fuzzy output.

• 其次，介绍了以焊接电流误差、焊接电流误差变化率为输入，可控硅控制角增量为输出的模糊控制器设计方法与过程。