Method for controlling a battery-powered welding device, and battery-powered welding device
US9919376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Dec 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method controls a battery-powered welding device and a battery-powered welding device includes a battery having a battery voltage and a battery current and a welding controller containing a boost converter having at least a switch and a buck converter having at least one switch for controlling a welding current and a welding voltage supplied to a welding torch. A switch for bypassing the booster converter is connected to a switch controller designed to close the switch if the intermediate circuit voltage between the boost converter and the buck converter is less than or equal to the battery voltage and to open the switch if the boost converter is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.