Stepped-waveform power converter utilizing a summing transformer and a single inverter bridge
US5495403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Dec 24, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A summing transformer includes first and second sets of primary windings and first and second sets of secondary windings. The primary windings of the first set are connected in a wye configuration whereas the windings of the second set are connected in a delta configuration and the sets of primary windings are connected to form a wye-delta configuration having terminals coupled to the outputs of an inverter bridge. Each winding of the first set of secondary windings is interconnected with a winding of the second set of secondary windings. Circuitry is provided for operating the inverter bridge such that a stepped phase output waveform is produced at each of a plurality of phase outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.