Method and apparatus for controlling wireless power transfer to electric vehicle using bridgeless rectifier
US11214164B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 30, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Mar 11, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling wireless power transfer to an EV using a bridgeless rectifier may include detecting a phase difference between an input voltage of a transmission-side resonance circuit and an output voltage of a reception-side resonance circuit; after detecting the phase difference, predicting a resonance frequency change direction according to a preconfigured design condition; and controlling switching time points of switches included in the bridgeless rectifier in a direction compensating for the predicted change direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.