2N+1 level voltage inverter
US9071165B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0095
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This system for converting a direct input voltage into an alternating output voltage comprises two input terminals, two voltage generators connected in series between the input terminals and connected to one another by a middle point, as well as, for each phase of the alternating voltage, an output terminal, two switching branches each connected between the output terminal and a respective input terminal, each switching branch comprising N first switching cells connected in series and N−1 intermediate points, the first switching cells successively being connected to one another by a corresponding intermediate point, N being an integer greater than or equal to 2, and control means for controlling the first switching cells. The system includes, for each phase of the alternating voltage, N−1 pair(s) of capacitors, each pair of capacitors being connected between intermediate points of one of the two switching branches and the other of the two switching branches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.