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This paper presents a circuit structure with a novel inverter that is applicable to arc welding machines. The output rectifier configuration adopts the current doubler rectifier with two coupled inductors. The proposed inverter topology can keep the energy stored in the coupled inductor until the next commutation interval. Moreover, the conduction loss will be lower, which improve the conversion efficiency...
A novel squarewave current inverter suitable for arc welding is proposed in this paper. Current-steering diodes connected across the output chokes keep the inductor current continuous and retain the energy during the commutation period. The commutation time can thus be reduced to ensure a better welding performance. Also the stored energy can be released in the next energy transfer cycle to raise...
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