Regulator for stepped-waveform inverter
US5027265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Dec 20, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/49
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A regulator for a stepped-waveform inverter having first and second subinverters which produce waveforms having a variable phase displacement therebetween and a summing transformer which sums the outputs of the subinverters includes circuitry for detecting a deviation of a parameter of the AC output power produced by the inverter from a reference and circuitry coupled to the detecting circuitry for deriving a phase command signal from the detected deviation. A comparator compares the phase command signal with a ramp signal to obtain a comparison signal and circuitry operates the first and second subinverters responsive to the comparison signal to cause the phase displacement to vary in accordance with the phase command signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.