Frequency-changing welding arrangement
US5942134A · kind A · utility
2Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | May 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4803
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter welding arrangement with a welding control for the operation on mains with different voltages, having a welding transformer which is designed for operation on a mains with the lowest voltage of different possible voltages and to which the alternating voltage which is generated by AC conversion from the rectified mains voltage is supplied directly. A saturation monitoring arrangement monitors the current in the transformer and breaks off or interrupts the current supply to the welding transformer (18) when the current (I.sub.P) flowing across the welding transformer (18) exceeds a threshold value (I.sub.T)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.