Portable terminal charging apparatus and automobile having portable terminal charging apparatus mounted therein
US9935488B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Mar 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging coil of a portable terminal charging apparatus is provided with a first detection coil, and a second detection coil disposed inward of the first detection coil and having a smaller diameter than a diameter of the first detection coil. The first and second detection coils are connected to a controller. If the ratio (V2/V1) of a second voltage (V2) detected by the second detection coil to a first voltage (V1) detected by the first detection coil is less than a first set value held in a memory between starting of conduction of the charging coil and connection of a charging load of the portable terminal, the controller performs a safety operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.