Modular electromagnetic interference filter inductor core
AssigneeCummins Inc.
InventorsVeda S. Duppalli, Santhosh Krishnamoorthi, Sanchit Mishra, Jaroslaw Leonarski, Dakshina S. Murthy-Bellur
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Abstract
Disclosed are designs for inductor cores for electromagnetic interference (EMI) filters. In some embodiments, an inductor core comprises a plurality of enclosed structures, where each enclosed structure of the plurality of enclosed structures includes a plurality of elongated bars and at least one connection device. In some embodiments, an enclosed structure is configured to encompass a signal bus. In some embodiments, an enclosed structure has a longitudinal axis and a triangular cross-sectional shape taken perpendicular to the longitudinal axis.
Claims20
An inductor core of an electromagnetic interference (EMI) filter, comprising:
- a plurality of enclosed structures, each enclosed structure of the plurality of enclosed structures comprising a plurality of elongated bars and at least one connection device;
- wherein each elongated bar of the plurality of the elongated bars comprises a magnetic material;
- and
- wherein each enclosed structure of the plurality of enclosed structures is configured to encompass a signal bus.
The inductor core of claim 8, wherein the plurality of enclosed structures are configured to encompass a plurality of AC buses having different phases.
An EMI filter, comprising:
- a capacitor;
- and
- an inductor having an inductor core, the inductor core comprising a plurality of enclosed structures, each enclosed structure comprising a plurality of elongated bars and at least one connection device;
- wherein each elongated bar of the plurality of the elongated bars comprises a magnetic material;
- and
- wherein each enclosed structures of the plurality of enclosed structures is configured to encompass a bus of a power supply.
An inductor core of an electromagnetic interference (EMI) filter, comprising:
- a plurality of enclosed structures, each enclosed structure of the plurality of enclosed structures having a longitudinal axis and a triangular cross-sectional shape taken perpendicular to the longitudinal axis;
- wherein each enclosed structure of the plurality of enclosed structures comprises a magnetic material;
- and
- wherein each enclosed structure of the plurality of enclosed structures is configured to encompass a signal bus.
Dependencies are inferred from the claim text.