Wireless power transmitter for high fidelity communications and high power transfer
US11005308B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jun 28, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of the wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.