A new double single-ended forward arc welding power inverter with IGBT as power device and current PWM controller is introduced in this paper.
提出了一种新型的双重单端正激式弧焊逆变电源，采用IGBT为开关器件，引入了电流型脉宽调制控制器。
The dressing device with pendulant electrode was designed based on the requirement of arc-forming wheel.
根据圆弧成形砂轮的修整需要，研制了摆动电极式电火花修整装置。
Besides, the paper introduces the method of interrupting the current by means of a synthetic loop with an arc-ignition device and presents an analysis of the test result.
此外，还介绍了用具有引弧装置的合成迥路来作开断电流试验的方法，同时分析了试验结果。
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