Single core cross-coupled multi-phase inductor
AssigneeOur Next Energy, Inc.
InventorAaron C. Harkness
Life of this patent
Estimating the term…
Abstract
A cross-coupled multi-phase inductor that includes a single core and pairs of adjacent windings wound on the single core. Each member of an adjacent pair includes a first sub-winding and a second sub-winding which extends from the first sub-winding and each member is cross-coupled with the other member of the pair such that the first and second sub-windings of each member of the adjacent pair are disposed diametrically opposite or substantially diametrically opposite each other on the single core. This results in reducing core losses and increasing power conversion efficiency of the cross coupled multi-phase inductor.
Claims25
A cross-coupled multi-phase inductor comprising:
- a single core;
- and
- at least one pair of adjacent windings wound on the single core, the at least one pair of adjacent windings comprising a main winding and a coupled winding, each adjacent winding of the at least one pair of adjacent windings further comprising a first sub-winding and a second sub-winding which extends from the first sub-winding;
- wherein the first and second sub-windings of the main winding are disposed on first opposing sides of the single core,
- wherein the first and second sub-windings of the coupled winding are disposed on second opposing sides of the single core adjacent to said first opposing sides, and
- wherein the first and second sub-windings of the main winding are cross-coupled with the first and second sub-windings of the coupled winding.
A power converter comprising:
- a plurality of inductors configured as a cross-coupled multi-phase inductor, the cross-coupled multi-phase inductor comprising:
- a single core;
- and
- at least one pair of adjacent windings wound on the single core, the at least one pair of adjacent windings comprising a main winding and a coupled winding, each adjacent winding of the pair further comprising a first sub-winding and a second sub-winding which extends from the first sub-winding;
- wherein the first and second sub-windings of the main winding are disposed on first opposing sides of the single core,
- wherein the first and second sub-windings of the coupled winding are disposed on second opposing sides of the single core adjacent to said first opposing sides, and
- wherein the first and second sub-windings of the main winding are cross-coupled with the first and second sub-windings of the coupled winding.
A method comprising the steps of:
- providing a single core;
- and
- winding, on the single core, at least one pair of adjacent windings, the at least one pair of adjacent windings comprising a main winding and a coupled winding, each adjacent winding of the pair further comprising a first sub-winding and a second sub-winding which extends from the first sub-winding;
- disposing the first and second sub-windings of the main winding on first opposing sides of the single core,
- disposing the first and second sub-windings of the coupled winding on second opposing sides of the single core, said second opposing sides being adjacent to said first opposing sides and
- producing a cross-coupled multi-phase inductor by cross-coupling the first and second sub-windings of the main winding with the first and second sub-windings of the coupled winding based on said disposing steps.
Dependencies are inferred from the claim text.