Magnetic core, inductor and EMI filter comprising same
US11373792B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 13, 2018 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Dec 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2003/106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductor according to one embodiment of the present invention comprised: a magnetic core; and a coil wound around the magnetic core, wherein the magnetic core includes a plurality of stacked sub-magnetic cores, each sub-magnetic core includes a first magnetic body and a second magnetic body, the first magnetic body and the second magnetic core are different materials, the second magnetic body is arranged on a surface of the first magnetic body, each sub-magnetic core has a toroidal shape, and a permeability of the first magnetic body differs from a permeability of the second magnetic body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.