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US 12,014,859 B2Granted
Coil component and switching regulator
AssigneeMurata Manufacturing Co., Ltd.
InventorsYoshimasa Yoshioka, Akinori Hamada, Atsuo Hirukawa
Life of this patent
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Abstract
A coil component including 2N coils, N being an integer of two or more, wherein the 2N coils are configured to form N pairs, and wherein when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils.
Claims13
A coil component comprising:
- an element body having a plurality of insulating layers laminated in a first direction;
- and
- 2N coils disposed inside the element body, N being an integer of two or more, wherein
- the 2N coils are configured to form N pairs, wherein
- when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils, wherein
- each of the 2N coils is made up of a wiring wound around less than one turn,
- the 2N coils are disposed on a same insulating layer of the plurality of insulating layers,
- any of the 2N coils do not overlap with each other when viewed in the first direction,
- an inside of an innermost circumference of the wiring is defined for each of the 2N coils as an inner diameter portion of the coil, and the inner diameter portions of the 2N coils do not overlap each other when viewed in a direction parallel to central axes of the 2N coils,
- the magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the second coil and each of the other coils,
- the wiring of the first coil and the wiring of the second coil form circular arcs facing opposite to each other, respectively, and forming circular arcs of one elliptical shape such that magnetic fluxes generated by the first and second coils are concentrated in an inner diameter portion of the elliptical shape.
8 more elements
A coil component comprising:
- an element body having a plurality of insulating layers laminated in a first direction;
- and
- 2N coils disposed inside the element body, N being an integer of two or more, wherein
- the 2N coils are configured to form N pairs, wherein
- when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils, wherein
- each of the 2N coils is made up of a wiring wound around less than one turn about a respective axis parallel to the first direction when viewed in the first direction,
- the 2N coils are disposed on a same insulating layer of the plurality of insulating layers,
- any of the 2N coils do not overlap with each other when viewed in the first direction,
- the magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the second coil and each of the other coils,
- the wiring of the first coil and the wiring of the second coil form circular arcs facing opposite to each other, respectively, and forming circular arcs of one elliptical shape such that magnetic fluxes generated by the first and second coils are concentrated in an inner diameter portion of the elliptical shape.
7 more elements
Dependencies are inferred from the claim text.