Method for controlling charging power and wireless charging apparatus for the same
US9048683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for advance detection of output power, before arrival at a boundary frequency between an inband and an outband during frequency tracking in a wireless charging apparatus, the wireless charging apparatus including a first resonator resonating at a lower-limit frequency of the inband and a second resonator resonating at an upper-limit frequency of the inband, to adaptively adjust the frequency based on the power values output from the first and second resonators, and to determine a power transmission control value corresponding to the adjusted frequency, thereby enabling frequency control and power control within the inband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.