Circuits and systems for wireless power transmission
US10680466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jun 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuits and systems for wireless power transmission include a driver circuit having first and second power terminals, a tapped coil, a first resonant tank, and a second resonant tank. The tapped coil includes a first, second, and third coil terminals, a first coil connected between the first and second coil terminals, and a second coil connected between the second and third coil terminals. The first resonant tank is coupled between the first and second power terminals. The second resonant tank is coupled between the first and second power terminals. The driver circuit is configured to provide and/or receive modulated power across the first and second power terminals and operate the device by switching between a first mode wherein the first resonant tank uses the first coil and a second mode wherein the second resonant tank uses the first coil and the second coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.