Charging EV battery using parallel buck and boost converters
US12139039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 9, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Controlling a charging current while transferring energy from a source battery to a target battery in an electric vehicle (EV) includes operating, by control circuitry, a buck converter at a fixed switching frequency to transfer power from the source battery to the target battery, in a first operational mode; in response to detecting a first trigger event, transitioning from the first operational mode to a second operational mode to operate the buck converter at a variable switching frequency; and in response to detecting a second trigger event, transitioning to a third operational mode to activate a boost converter coupled to the source battery and the target battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.