Granted Patent B2

US 12,400,781 · App. 17/476,268 · Granted Aug 26, 2025

Inventors: Richard C. Hombsch (Milwaukee, WI); Ashwin Kudmulwar (Milwaukee, WI); Todd Shudarek (West Bend, WI)

Assignee: MTE, LLC

H01F27/26H01F41/0206

Abstract

Claims (73)

1. A device comprising:

at least one three-phase inductor, comprising:

at least one core, comprising:

a plurality of first core segments;

at least one second core segment; and

at least one inductive coil positioned on the at least one second core segment;

wherein each first core segment of the plurality of first core segments has at least one first shape;

wherein the plurality of first core segments is arranged in at least one first pattern so as to form:

a first plurality of differential mode gaps between the plurality of first core segments and

a second plurality of differential mode gaps between the plurality of first segments and the at least one second core segment;

wherein the at least one first shape is such that the at least one first pattern permits to independently adjust a thickness of each differential mode gap of the plurality of differential mode gaps;

wherein the at least one second core segment has at least one second shape; and

wherein the plurality of first core segments are in an interior of the core and the at least one second core segment at least partially encompasses the plurality of first core segments.

2. The device as recited in claim 1 , wherein the at least one first core segment comprises a polygonal shape.

3. The device as recited in claim 1 , wherein the at least one second core segment comprises a toroidal shape.

4. The device as recited in claim 1 , wherein an electrical current in the at least one inductor coil causes at least one common mode flux path associated with a common mode inductance around the at least on second shape via the at least one second core segment.

5. The device as recited in claim 1 , wherein an electrical current in the at least one inductor coil causes a plurality of differential mode flux paths associated with a differential mode inductance through the at least on first shape via the plurality of first core segments; and

wherein the differential mode inductance is adjusted by the thickness of each differential mode gap.

6. The device as recited in claim 1 ,

wherein the at least one second core segment is a plurality of second core segments;

wherein the plurality second core segments are arranged in at least one second pattern to form a plurality of common mode gaps between the plurality of second core segments;

wherein the at least one second shape is such the at least one second pattern permits to independently adjust a thickness of each common mode of the plurality of common mode gaps; and

wherein the at least one first pattern is different from the at least one second pattern.

7. A device comprising:

at least one three-phase inductor, comprising:

a plurality of stacked core laminations;

wherein the plurality of stacked core laminations comprises:

a plurality of first core segments, and

at least one second core segment;

at least one inductive coil positioned on the at least one second core segment;

wherein each first core segment of the plurality of first core segments has at least one first shape;

wherein the plurality of first core segments is arranged in at least one first pattern so as to form:

a first plurality of differential mode gaps between the plurality of first core segments and

a second plurality of differential mode gaps between the plurality of first segments and the at least one second core segment;

wherein the at least one first shape is such that the at least one first pattern permits to independently adjust a thickness of each differential mode gap of the plurality of differential mode gaps;

wherein the at least one second core segment has at least one second shape; and

wherein the plurality of first core segments are in an interior of the core and the at least one second core segment at least partially encompasses the plurality of first core segments.

8. The device as recited in claim 7 , wherein the at least one first core segment comprises a polygonal shape.

9. The device as recited in claim 7 , wherein the at least one second core segment comprises a toroidal shape.

10. The device as recited in claim 7 ,

wherein an electrical current in the at least one inductor coil causes at least one common mode flux path associated with a common mode inductance around the at least on second shape via the at least one second core segment;

wherein an electrical current in the at least one inductor coil causes a plurality of differential mode flux paths associated with a differential mode inductance through the at least on first shape via the plurality of first core segments; and

wherein the differential mode inductance is adjusted by the thickness of each differential mode gap.

11. The device as recited in claim 7 , wherein each stacked core lamination of the plurality of stacked core laminations is interleaved with at least one adjacent stacked core lamination of the plurality of stacked core laminations.

12. The device as recited in claim 7 ,

wherein the at least one second core segment is a plurality of second core segments;

wherein the plurality second core segments are arranged in at least one second pattern to form a plurality of common mode gaps between the plurality of second core segments;

wherein the at least one second shape is such the at least one second pattern permits to independently adjust a thickness of each common mode of the plurality of common mode gaps; and

wherein the at least one first pattern is different from the at least one second pattern.

13. A method comprising:

providing at least one three-phase inductor, comprising:

at least one core, comprising:

a plurality of first core segments and

at least one second core segment;

at least one inductive coil positioned on the at least one second core segment;

wherein each first core segment of the plurality of first core segments has at least one first shape;

wherein the plurality of first core segments is arranged in at least one first pattern so as to form:

a first plurality of differential mode gaps between the plurality of first core segments and

a second plurality of differential mode gaps between the plurality of first segments and the at least one second core segment;

wherein the at least one first shape is such that the at least one first pattern permits to independently adjust a thickness of each differential mode gap of the plurality of differential mode gaps;

wherein the at least one second core segment has at least one second shape; and

wherein the plurality of first core segments are in an interior of the core and the at least one second core segment at least partially encompasses the plurality of first core segments.

14. The method as recited in claim 13 , wherein the at least one first core segment comprises a polygonal shape.

15. The method as recited in claim 13 , wherein the at least one second core segment comprises a toroidal shape.

16. The method as recited in claim 13 ,

wherein an electrical current in the at least one inductor coil causes at least one common mode flux path associated with a common mode inductance around the at least on second shape via the at least one second core segment;

wherein an electrical current in the at least one inductor coil causes a plurality of differential mode flux paths associated with a differential mode inductance through the at least on first shape via the plurality of first core segments; and

wherein the differential mode inductance is adjusted by the thickness of each differential mode gap.

17. The method as recited in claim 13 ,

wherein the at least one second core segment is a plurality of second core segments;

wherein the plurality second core segments are arranged in at least one second pattern to form a plurality of common mode gaps between the plurality of second core segments;

wherein the at least one second shape is such the at least one second pattern permits to independently adjust a thickness of each common mode of the plurality of common mode gaps; and

wherein the at least one first pattern is different from the at least one second pattern.

Assignments (1)

Continuity (2)

References Cited (10)