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US 11,798,733 B2Granted
Transformer apparatus
AssigneeSolaredge Technologies Ltd.
InventorsNikolay Tal, Tzachi Glovinsky
Life of this patent
Estimating the term…
Abstract
Systems, apparatuses, and methods are described for a transformer supporting two or more sets of windings electrically connected to different voltage levels. Use of stress control materials or composite materials (comprising a matrix and filler) may direct electrical fields caused by the different voltage levels to have a lowered electrical field amplitude.
Claims20
An apparatus comprising:
- a magnetic core comprising a core leg;
- inner windings disposed around the core leg;
- outer windings disposed around the inner windings, wherein the outer windings comprise outer winding edges;
- an insulation layer between the inner windings and the outer windings, wherein the insulation layer extends beyond the outer winding edges and shields the outer windings from the inner windings;
- an inner semiconducting layer between the inner windings and the insulation layer;
- an outer semiconducting layer between the insulation layer and the outer windings, wherein the outer semiconducting layer comprises outer semiconducting layer edges aligned with the outer winding edges;
- and
- stress control material different from an insulating material of the insulation layer, wherein the stress control material is disposed adjacent to the outer winding edges and adjacent to the insulating material of the insulation layer.
5 more elements
A power device comprising:
- a magnetic core comprising a core leg;
- inner windings disposed around the core leg;
- outer windings disposed around the inner windings, wherein the outer windings comprise outer winding edges;
- an insulation layer between the inner windings and the outer windings, wherein the insulation layer extends beyond the outer winding edges and shields the outer windings from the inner windings;
- an inner semiconducting layer between the inner windings and the insulation layer;
- an outer semiconducting layer between the insulation layer and the outer windings, wherein the outer semiconducting layer comprises outer semiconducting layer edges aligned with the outer winding edges;
- and
- stress control material different from an insulating material of the insulation layer, wherein the stress control material is disposed adjacent to the outer winding edges and adjacent to the insulating material of the insulation layer.
5 more elements
A system comprising:
- a magnetic core comprising a core leg;
- inner windings disposed around the core leg;
- outer windings disposed around the inner windings, wherein the outer windings comprise outer winding edges;
- an insulation layer between the inner windings and the outer windings, wherein the insulation layer extends beyond the outer winding edges and shields the outer windings from the inner windings;
- an inner semiconducting layer between the inner windings and the insulation layer;
- an outer semiconducting layer between the insulation layer and the outer windings, wherein the outer semiconducting layer comprises outer semiconducting layer edges aligned with the outer winding edges;
- stress control material different from an insulating material of the insulation layer, wherein the stress control material is disposed adjacent to the outer winding edges and adjacent to the insulating material of the insulation layer;
- a power source circuit connected to the inner windings;
- and
- a load circuit connected to the outer windings.
7 more elements
A method comprising:
- providing a magnetic core comprising a core leg;
- disposing inner windings around the core leg;
- disposing outer windings around the inner windings, wherein the outer windings comprise outer winding edges;
- disposing an insulation layer between the inner windings and the outer windings, wherein the insulation layer extends beyond the outer winding edges and shields the outer windings from the inner windings;
- disposing an inner semiconducting layer between the inner windings and the insulation layer;
- disposing an outer semiconducting layer between the insulation layer and the outer windings, wherein the outer semiconducting layer comprises outer semiconducting layer edges aligned with the outer winding edges;
- and
- disposing stress control material, different from an insulating material of the insulation layer, adjacent to the outer winding edges and adjacent to the insulating material of the insulation layer.
5 more elements
Dependencies are inferred from the claim text.