Radio frequency (RF) power source and method for use with a wireless power transmitter of a wireless power transfer system
US10892649B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Sep 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) power source for use with a wireless power transmitter is provided. A direct current (DC) voltage supply of the RF power source supplies a substantially constant DC voltage to RF power source circuitry of the RF power source. A first node of the RF power source circuitry is electrically coupled to a first terminal of the DC voltage supply. The RF power source circuitry has first and second terminals that are electrically coupled to first and second terminals, respectively, of a resonant magnetic loop antenna of the wireless power transmitter circuit to provide an RF current having a constant amplitude to the resonant magnetic loop antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.