单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
偏置电压的大小、门脉冲宽度和周期的选择对后脉冲的消除起着关键的作用。
How to choose the bias voltage, the width and the period of the gated pulse is very important.
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