【摘要】 现代下降特性电子弧焊电源设置的后拖特性一般是由电弧电压取样作为参考电压形成的。本文介绍一种采用自适应电流调节器实现后拖特性的工作原理，它的电路简单，避免了弧压干扰，提高了系统的稳定性。更多还原

【Abstract】 The electron arc welding power source without sampling of arc voltage is introduced in this paper. The operating principle of adaptive current regulator has been used for its extensional dropping characteristic. Its circuit is simple and the interfere of arc voltage has been avoided. Its stabiliey has been improved.更多还原