摘要
介绍了脉冲-直流两用逆变器。在该逆变器中设置了小电流引弧电路,建立了数学模型,成功地实现了引弧电流软启动。讨论了获得脉冲电流的原理。实测波形显示,输出的矩形波脉冲电流非常精确,且带有前沿尖峰,有利于电弧的稳定。
A pulse-DC converter for dual uses is introduced in the paper. The arc striking circuit with low current and mathematic model is developed and used, the smooth arc striking has been achieved successfully. The wave shape measured indicates that the converter outputs the exact square pulse current with a peak in each front edge of pulse which is the benefit for arc stabilization.
出处
《焊接》
北大核心
1990年第4期4-7,13,共5页
Welding & Joining
