【摘要】 介绍了单片机控制的ＩＧＢＴ 逆变式脉冲ＴＩＧ 焊机的系统结构、原理和时序控制规范，给出了单片机数字系统的硬件和软件框图，并就所采用的两种新颖实用的工频高压脉冲引弧和接触提升引弧作了研究。更多还原

【Abstract】 The author develops a microcomputer controlled IGBTinverter welding machinefor pulsed TIGwelding .The sys tem structure ,principle and time sequence criterion areintroduced .The hardware and software flowcharts of microcomputer’s nu meric system have been shown .Two kinds of noveland practicalhigh voltage pulsed starting arc andtouch liftstarting arc has been discussed in this paper.更多还原