A concept of resource loop and directed assistant arc are drawn into to improve reliability by controlling its activity.
引入资源回路和有向辅助弧的概念，通过对其活性进行控制而提高系统的可靠性。
This paper introduces the circuit topology of portable inverter arc welder with soft snubber, mainly power circuit is a double switch forward converter with assistant resonant circuit.
主电路采用具有无源辅助谐振网络的双管正激变换器，与普通双管正激变换器相比，功率管开关状态得到较好的改善，同时并没有增加电路的复杂性。
With the way of connecting damp resistor to the secondary assistant winding of arc-suppression, the question of easily destroyed damp resistor is solved.
通过消弧线圈二次辅助绕组接入阻尼电阻的方法解决了阻尼电阻易损坏的问题。
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