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US 2018/0005749 A1Published application
Coupled inductor
AssigneeTamura Corporation
InventorsNaoki Inoue, Toshikazu Ninomiya
Life of this patent
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Abstract
A coupled inductor comprises an annular core 1 and coils 2a, 2b wound around the core. The annular core 1 includes a sendust core having a maximum differential permeability that is equal to or greater than 30.
Claims7
A coupled inductor comprising:
- an annular core including a sendust core having a maximum differential permeability that is equal to or greater than 30;
- and
- a coil wound around the core, wherein the coil includes two coils wound around the core such that magnetic fluxes generated from the two coils are oriented in opposite direction to each other,
- wherein a coupling coefficient of the coupled inductor formed by the two coils is equal to or smaller than 0.8.
1 more element
Dependencies are inferred from the claim text.