Arc welding power supply

Details Arc welding power supply Arc welding power supply

1998-03-16

1999-11-23

Nguyen, Matthew

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

219137PS, H02M 3335, B23K 900

Patent

active

059911697

ABSTRACT:
A dual stage power supply for creating a D.C. welding current through an arc welding gap, the power supply comprising an input inverter stage with a full wave rectified A.C. voltage source and an output capacitor; and, an output chopper stage connected across the output capacitor, with the chopper including output leads connected across the arc welding gap, a switch for gating the output current of the inverter stage at a controlled rate through the leads and through the arc welding gap, an output inductor in one of the leads between the switch and the arc welding gap and a free wheeling diode across the leads between the switch and the output inductor.

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patent: 5864116 (1999-01-01), Baker

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