Wireless power transmitter including miniaturized inverter for reducing harmonics
US12074449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2022 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An example wireless power transmitter may include a transistor configured to output an amplified signal, a first capacitor coupled to the transistor in parallel, a first LC resonant circuit coupled to the transistor in parallel, a third capacitor having a first end coupled to an output terminal of the transistor and the first LC resonant circuit, a feeding coil coupled to a second end of the third capacitor in series, and having at least a part configured to form a second LC resonant circuit with the third capacitor, and a transmission resonator including a transmission coil and a fourth capacitor coupled to the transmission coil in series. At least a part of the transmission coil may be magnetically coupled with the feeding coil, and at least a part of power received from the feeding coil may be output to an outside through the transmission resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.