Title :
Resonant transition switching welding power supply
Author :
Fröhleke, N. ; Mundinger, H. ; Beineke, S. ; Wallmeier, P. ; Grotstollen, H.
Author_Institution :
Inst. for Power Electron. & Electr. Eng., Paderborn Univ., Germany
Abstract :
By means of parallel connected passive networks, charged only modestly by energy for commutation, resonant transition switching is ensured for this modified full-bridge topology used in a welding power supply. A new driving scheme adapts the resulting power circuitry for both the droplet and the short-circuiting transfer welding modes occurring in the gas metal arc welding process. Less voluminous and cheaper magnetic components together with lower conduction losses of transistors and diodes yield a cost-effective, lightweight power supply for 12 kW/350 A. The analysis of the circuit, the design and the verification results are presented
Keywords :
arc welding; bridge circuits; commutation; passive networks; power supplies to apparatus; resonant power convertors; switching circuits; 12 kW; 350 A; commutation energy; conduction losses; gas metal arc welding process; magnetic components; modified full-bridge topology; parallel-connected passive networks; resonant transition switching welding power supply; welding modes; Circuit analysis; Circuit topology; Diodes; Magnetic analysis; Magnetic circuits; Magnetic resonance; Network topology; Passive networks; Power supplies; Welding;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671804
