Multi-level power converter
US9571004B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/487
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This is a multi-level converter comprising at least one arm (B) formed of n stages (Et1, Et2, . . . , Etn) mounted in cascade. The first stage (Et1) comprises a single switching structure (Ce10) with four voltage levels and an ith stage (i lying between two and n) comprises i identical switching structures (Cei1, Cei2, . . . Ceii) with four voltage levels, mounted in series. Each switching structure with four voltage levels comprises a cell of floating capacitor type (T1, T2, T1′, T2′, C12), two basic switching cells (T3u, T3′u; T3l, T3′l) and a capacitive divider bridge (C9, C10, C11), the basic switching cells being connected between the voltage divider bridge and the cell of floating capacitor type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.