Power receiving apparatus, power transmission system, charging apparatus and power transmission method
US11070089B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2019 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power receiving apparatus includes: a resonance element having a specific resonance frequency and adapted to couple in a non-contacting relationship to a different resonance element through a resonance relationship; a rectification section configured to rectify ac current of the resonance frequency in response to energy received by the resonance element; and a switching section configured to cut off a supplying path of the ac current from the resonance element to the rectification section; the resonance element maintaining the coupling state through the resonance relationship to the different resonance element also when the supplying path of the ac current to the rectification section is blocked by the switching section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.