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Development of DC-DC Converter for Arc Welding Machines using A Novel Half Bridge Soft Switching PWM Inverter  

Kwon, Soon-Kurl (Division of Electronic & Electrical Engineering, Kyungnam University)
Mun, Sang-Pil (Division of Electronic & Electrical Engineering, Kyungnam University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.45, no.4, 2008 , pp. 60-67 More about this Journal
Abstract
This paper presents a new full-bridge soft switching PWM DC-DC converter circuit topology that adding two switcher, two lossless snubber quasi-resonance capacity, two diode to power source for general welding machine. This half bridge soft switching Is low voltage hight current output that first coil current is smaller than second coil current in high frequency transformer can be obtained with decreasing path loss in conventional DC bus line switcher. As it operate ZCS/ZVS in full range, high frequency, high efficiency and high output are implemented at low voltage and high DC current switching power supplies. All of this items are got from simulation and the result of experiment. If make up for the weak points of this proposed circuit, it will be used more easily for next generation TIG, MIG and MAG type of arc-welding machine.
Keywords
High Frequency Inverter; DC-DC Converter; Arc-Welding Machine;
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