Double-power-supply switching control system for a welding machine and method
US11192201B2 · kind B2 · utility
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2References
17Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 16, 2018 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a double-power-supply switching control system for a welding machine and method. The welding machine double-power-supply switching control method comprises the steps of: continuously detecting and modifying an input voltage signal by a signal modification unit; under the control of a control unit, judging, by a judgment unit, whether to perform voltage doubling, controlling to execute voltage doubling switching action, and locking an actual input voltage mode of a welding machine by a locking unit; and finally outputting matched output current by a power supply output unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.