Control for full-bridge inverter
US5055992A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Jan 29, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53803
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter control for a full-bridge inverter having a plurality of phase legs each of which includes a switch which is operated to produce one of a set of phase output voltages and wherein a neutral voltage is derived from the phase output voltages compares each phase output voltage to a reference and selects a switching pattern for each inverter switch in dependence upon the comparison wherein the selected switching pattern for two of the phases are different. The switches are controlled in accordance with the selected switching patterns whereby the amplitudes of particular harmonics in the inverter output are adjusted to in turn control the amplitude of other harmonics in the inverter output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.