Wireless power transmission system and induction heating cooker
US10734845B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2213/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transmission apparatus according to the present invention includes a coil which generates a high-frequency magnetic field upon reception of a high-frequency current, a support which supports the power receiving device within the high-frequency magnetic field, an inverter circuit which supplies the high-frequency current to the coil, and a controller which controls the driving of the inverter circuit. The controller performs a power transmission operation to transmit power to the power receiving device, if the impedance on the output side of the inverter circuit exhibits a resonant characteristic as the driving frequency of the inverter circuit is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.