Multi-coil inductor
AssigneeDelta Electronics (Shanghai) Co., Ltd.
InventorsZengyi Lu, Haijun Yang, Shiwei Liu
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Abstract
A multi-coil inductor includes a plurality of stacked inductor units. Each of the inductor units comprises: a magnetic core in which a magnetic path is formed; and a plurality of coils which are wound around the magnetic core to form at least one winding pair. Wherein a part of the magnetic path between the adjacent inductor units is shared. In the present invention, the leakage inductance is controlled and the may be magnetic saturation of magnetic core avoided by adjusting series and parallel connections among the coils.
Claims10
A multi-coil inductor, comprising a plurality of stacked inductor units, each of the inductor units comprising:
- a magnetic core in which a magnetic path is formed;
- and
- a plurality of coils wound around the magnetic core to form at least one winding pair;
- wherein a magnetic path between adjacent inductor units is shared and the magnetic path shared by the adjacent inductor units comprises an opening;
- wherein the magnetic flux on the magnetic path shared by the adjacent inductor units has opposite directions, and a sectional area of a common magnetic column is equal to or smaller than sectional areas of other magnetic columns in the magnetic path.
Dependencies are inferred from the claim text.