Three-stage power converters for electric vehicle charging
US10811975B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In at least one illustrative embodiment, a three-stage power converter includes a rectifier having an input to receive three-phase alternating-current (AC) and an output coupled to a first direct-current (DC) bus, a buck converter having an input coupled to the first DC bus and an output coupled to a second DC bus, and an LLC resonant converter having an input coupled to the second DC bus and an output to provide a DC charging current to a battery. The buck converter may be operable across a range of duty cycles to adjust a voltage level supplied to the second DC bus, and the LLC resonant converter may be operable in a plurality of modes to provide a plurality of discrete gain levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.