Non-contact power transmission system, receiving apparatus and transmitting apparatus
US10050474B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Aug 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A non-contact power transmission system comprises: a primary coil including a power supply coil and a magnetic resonance coil; and a secondary coil including a load coil, thereby transmitting an electric power from the power supply coil at a self-resonating frequency of the magnetic resonance coil, which is determined by a parasitic capacitance between wound wires of the coil and a self inductance of the coil, and taking out the electric power supplied, from the load coil of the secondary coil through magnetic coupling, with non-contact, wherein the electric power is transmitted, with non-contact, with applying magnetic coupling in coupling between the power supply coil and the magnetic resonance coil and coupling between the magnetic resonance coil and the load coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.