Power supply apparatus for arc-utilizing apparatuses
US7457139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Nov 19, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0956
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply apparatus for use with arc-utilizing apparatuses includes a plurality of power supply blocks of the same capacity. Each power supply block includes an input-side rectifying circuit, an inverter, a transformer, and an output-side rectifying circuit. The inverter is controlled by a control circuit in such a manner that high-frequency current flowing the inverter or current flowing through the output-side rectifying circuit can correspond to a reference signal provided by a reference signal generator. The outputs of the output-side rectifying circuits of the power supply blocks are connected in parallel with each other. The values of the reference signals generated by the reference signal generators are made always equal by the action of equipotential lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.