Power source for high current welding
US7274000B2 · kind B2 · utility
8Cited by
27References
81Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Oct 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F30/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter based power source for electric arc welding where the power source includes a high switching speed inverter for driving the primary side of an output transformer that has a primary circuit with current greater than 250 amperes and a secondary circuit with a current having an operating range with a maximum current greater than 700 amperes and an output rectifier to rectify the secondary current into a DC current suitable for welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.