根据熔化极焊丝填充焊的特性，对钢桥焊接中普遍应用的药芯焊丝CO_2气体保护焊和埋弧自动焊进行了焊接试验。

According to the characteristics of arc welding with filler wire, experiments about the FCAW-CO_2 and SAW which is commonly used in steel bridge welding were carried out.

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采用状态空间平均法建立了全桥逆变式弧焊电源主回路的平均状态方程，经过线性化处理推导出频域小信号模型。

The paper introduces the dynamic characteristic and the structure of arc welding power, and gives a method of designing arc welding power which using DSP chip as a controller.

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介绍一种新型的零电压、零电流全桥相移pwm弧焊逆变器。

This paper introduces a novel PWM welding inverter with Zero-Voltage-Switching (ZVS) and Zero-Current-Switching (ZCS) phase shift full bridge.

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