double pulse current mig weld 双脉冲mig焊
The main circuit USES the double barrel pair to stir up the topology, and USES the pulse electric current comparison control technology and soft switch technology.
主电路采用双管双正激拓扑结构，采用了逐脉冲电流比较控制技术和软开关技术。
Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the main harmonic components of the system were obtained.
通过对半控双三相12脉冲整流器的电流波形分析和傅立叶级数展开，得出系统的主要谐波成分。
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