Voltage step-up autotransformer, and AC-to-DC converter comprising such an autotransformer
US10665384B2 · kind B2 · utility
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Key dates
| Filing date | Jul 30, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage step-up autotransformer topology and an AC-to-DC converter including such an autotransformer are provided. The autotransformer is configured to take, at input, a three-phase AC current (for example 115 VAC with a constant frequency), and to output nine output voltages, which are supplied to an 18-pulse rectifier bridge assembly so as to supply a high DC voltage (for example +270 VDC/−270 VDC). These are particularly suitable for AC-to-DC converters in the aeronautical sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.