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US 2006/0231532 A1Published application
System and method for converting welding power to plasma-cutting power
AssigneeIllinois Tool Works Inc.
InventorsThomas Bunker, Joseph Schneider, James Ulrich
Life of this patent
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Abstract
The present invention includes a plasma cutter having an input configured to receive welding power and a converter arranged according to a Ćuk topology and configured to automatically convert the welding power to plasma-cutting power.
Claims21
A plasma cutter comprising:
- an input configured to receive DC welding power from a welder;
- and
- a converter arranged according to a Ćuk topology and configured to automatically convert the DC welding power to plasma-cutting power.
11-16. (canceled)
The plasma-cutting system of claim 21 wherein the multi-loop feedback control is further configured to control the converting circuit to automatically convert welding power to constant-current, plasma-cutting power.
A plasma-cutting system comprising:
- a first input configured to receive AC power;
- a second input configured to receive welding power, the welding power being a DC signal;
- a plasma cutting output configured to deliver plasma-cutting power if either of the first input and the second input receives power;
- a converting circuit configured to convert received welding power to plasma-cutting power;
- and
- wherein the converting circuit is a Ćuk converter.
3 more elements
An apparatus configured to:
- receive single-phase AC power from a welding power source;
- and
- convert the single-phase AC power to a multi-phase power.
Dependencies are inferred from the claim text.