PORTABLE DC ARC WELDING MACHINE

PROBLEM TO BE SOLVED: To provide a portable DC arc welding machine which can be returned to a normal welding by terminating a short-circuit state in an early stage when a short circuit occurs. SOLUTION: The portable DC arc welding machine having a portable DC arc welding power source for supplying t...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	HIROI TORU
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a portable DC arc welding machine which can be returned to a normal welding by terminating a short-circuit state in an early stage when a short circuit occurs. SOLUTION: The portable DC arc welding machine having a portable DC arc welding power source for supplying the first constant current from the welding power source to a welding output terminal and supplying the second constant current larger than the first constant current in a short-circuit state comprise: detection circuits 101, CT for detecting the welding output voltage and the welding output current at the welding output terminals P, N; a control circuit 100 for forming a control signal so as to obtain the current characteristic according to the magnitude of the welding output voltage; and output circuits 110, 111 for supplying the welding current to the welding output terminals according to the control signal from the control circuit and the detected current from the detection circuits. COPYRIGHT: (C)2008,JPO&INPIT