Systems, methods, and apparatus for pre-regulator control in welding-type power supplies
US11839939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Oct 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/44
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus, systems, and/or methods are disclosed relating to a welding-type power supply with a pre-regulator circuit configured to provide a pre-regulated direct current (DC) bus at two or more voltage levels, responsive to various operating conditions. In some examples, the pre-regulator circuit may be configured to provide a pre-regulated DC bus voltage at one voltage level for certain input line voltages, weld processes, and/or target weld output levels, and at another voltage level for other input line voltages, weld processes, and/or target weld output levels. In some examples, the pre-regulator circuit may be configured to provide a pre-regulated DC bus voltage for certain input line voltages, weld processes, and/or target weld output levels and an unregulated DC bus voltage at other input line voltages, weld processes, and/or target weld output levels. In some examples, the pre-regulator circuit may be configured to provide a pre-regulated DC bus at a service voltage in response to detecting a service mode of operation, and/or at an idle voltage in response to detecting an idle mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.