DC-to-AC power converter with high efficiency
US9923480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC-to-AC power converter (1) includes: a current-type DC-to-AC converter (70) having a first DC input (80) and a first AC output (85), said first DC input (80) being connected in parallel to said main DC input (10) and said first AC output (85) being connected in parallel to said main AC output (20); and a controller (110) for: controlling said bidirectional voltage-type DC-to-AC converter (50) for delivering at said first AC output-input (65) a sinusoidal AC voltage of said fundamental frequency f0; controlling said current-type DC-to-AC converter (70) for delivering at said first AC output (85) a quasi square-type AC current of said fundamental frequency ID and in phase with said sinusoidal AC voltage; imposing that at least 70% of said rated current is provided by said current-type DC-to-AC converter (70).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.