Arc-machining power supply with switching loss reducing element

Details Arc-machining power supply with switching loss reducing element Arc-machining power supply with switching loss reducing element

2007-11-27

2007-11-27

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S098000, C363S056030, C363S056020

Reissue Patent

active

11152832

ABSTRACT:
A power supply for performing arc-machining operation includes a primary rectifier connected to the commercial AC power source and an inverter coupled to the rectifier. A switching device is provided between the rectifier and the inverter. By controlling the power supplied from the rectifier to the inverter, the switching device prevents a large switching loss from occurring in the inverter.

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patent: 6556458 (2003-04-01), Ohmura et al.
patent: 6570779 (2003-05-01), Shimazaki et al.

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