Resonant power transfer system and method of estimating system state
US10525181B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2013 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jul 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems for tuning a wireless power transfer system are provided, which may include any number of features. In one embodiment, a wireless power transfer system can include a transmit controller connected to the transmitter resonator and configured to measure an impedance on the transmitter resonator. The transmit controller can be configured to determine a load resistance of the receiver resonator and a coupling coefficient between the transmitter and receiver resonators based on the measured impedance on the transmitter resonator. The transmit controller can be further configured to adjust a power transmission parameter of the transmitter resonator based on the determined load resistance and the coupling coefficient to achieve a controlled voltage at a load of the receiver. Methods of use are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.