Systems and methods for efficient provision of arc welding power source

A welding or cutting device includes a first transistor coupled between a first node and a second node. The first transistor controls current and voltage provided to an inductor during a welding or cutting operation. The welding or cutting device also includes a first diode coupled in series with th...

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Bibliographische Detailangaben
1. Verfasser:	Salsich, Anthony Van Bergen
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CLADDING OR PLATING BY SOLDERING OR WELDING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRICITY GENERATION MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A welding or cutting device includes a first transistor coupled between a first node and a second node. The first transistor controls current and voltage provided to an inductor during a welding or cutting operation. The welding or cutting device also includes a first diode coupled in series with the first transistor between the second node and a third node, and a second diode coupled in parallel with the first transistor and the first diode between the first node and a fourth node. Additionally, the welding or cutting device includes a second transistor coupled in series with the second diode and in parallel with the first transistor and the first diode between the fourth node and the third node. The second transistor controls a voltage applied to a transistor during a freewheeling operation of the inductor. Further, the welding or cutting device includes the inductor arranged between the second node and the fourth node and coupled to a first terminal of an output and a second terminal of the output coupled to the fourth node. Moreover, the welding or cutting device includes a bus capacitor coupled in parallel with the first transistor and the first diode between the third node and the first node.