Coil module, wireless power transmitting circuit and wireless power receiving circuit
US10650964B2 · kind B2 · utility
2Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/146
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application discloses a coil module, a wireless power transmitting circuit and a wireless power receiving circuit. By overlapping a plurality of coils with each other and arranging matched capacitance between adjacent coils and matched capacitance at the output of the coil module, the coupling inductance is increased, the circulating current caused by parasitic capacitance between overlapped coils is effectively reduced and charging efficiency is improved while the cross-sectional area of the coil is kept constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.