Modulator for flying-capacitor type multilevel converter, multilevel converter, and method for operating multilevel converter
US12081142B2 · kind B2 · utility
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| Filing date | Aug 16, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Mar 7, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A modulator for a flying-capacitor type multilevel converter receives, at an input, a time-variant reference signal and provides, at an output, a sequence of target levels, to provide switching signals for switching between discrete output levels of the multilevel converter according to the shape of the reference signal. The modulator determines a critical level as an intermediate output level of the multilevel converter which is closest to the level of the reference signal; and outputs only target levels corresponding to output levels different from the critical level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.