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US 2016/0365192 A1Published application
Noise filter, multistage-connection lc filter, and medical instrument
AssigneeNEC Tokin Corporation
InventorYusuke OHDAIRA
Life of this patent
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Abstract
A noise filter includes a plurality of inductor elements connected with one another in series. The inductor element includes a ring-shaped magnetic core, a winding wound around the magnetic core, and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground. The ground terminal includes a conductive part that surrounds at least a part of an outer periphery of the magnetic core.
Claims10
A noise filter comprising a plurality of inductor elements connected with one another in series, wherein
- each of the inductor elements comprises:
- a ring-shaped magnetic core;
- a winding wound around the magnetic core;
- and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground, and
- the ground terminal comprises a conductive part that surrounds at least a part of an outer periphery of the magnetic core.
2 more elements
A multistage-connection LC filter comprising:
- a plurality of noise filters and a plurality of Y-capacitors, wherein
- the noise filters comprise a plurality of inductor elements connected with one another in series,
- each of the inductor elements comprises:
- a ring-shaped magnetic core;
- a winding wound around the magnetic core;
- and a ground terminal disposed between the magnetic core and the winding, the ground terminal being to connected to a ground,
- the ground terminal comprises a conductive part that surrounds at least a part of an outer periphery of the magnetic core, and
- the plurality of inductor elements and the plurality of Y-capacitors are alternately connected in series.
5 more elements
Dependencies are inferred from the claim text.