研制的谐振式软开关弧焊逆变电源，主电路采用新型LCL结构，控制系统选用恒频移相调脉宽控制方案。
The resonant soft switching inverter arc welding power source uses LCL type structure in the main circuit, and selects phase shifting pulse wide modulation technique in the control system.
本课题采用LM2576作为电源主功率器件，配合PIC系列单片机，实现电源供电及电池的全面智能管理。
This topic using LM2576 as the main power supply devices, with the PIC series of microcontrollers, power supply and battery to achieve a comprehensive intelligent management.
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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