Power receiving device, and electronic apparatus and non-contact charger using the same
US8193767B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2007 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Sep 7, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is an electronic apparatus (1) comprising a power receiving device (2) and an electronic apparatus main body (3). The power receiving device (2) comprises a power receiving coil (11) having a spiral coil, a rectifier (12) and a secondary battery (13). The electronic apparatus main body (3) comprises an electronic device (14) and a circuit board (15). A magnetic foil (16) is arranged in at least one position between the spiral coil (11) and the secondary battery (13), the rectifier (12), the electronic device (14) or the circuit board (15). The magnetic foil (16) has a value expressed as the product of the saturation flux density MS and the thickness t, namely Ms·t, of not less than 15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.