Multi-layer transformer having electrical connection in a magnetic core

A multi-layer transformer, comprising:

• a plurality of layers defining a magnetic core area disposed on at least two layers which form a magnetic core of the transformer;
• a primary winding disposed on a first layer, the primary winding defining a central core region on the first layer;
• a secondary winding disposed on a second layer, the secondary winding defining a central core region on the second layer;
• the first and second layers being disposed adjacent to each other such that the primary winding and the secondary winding are disposed in an interleaving relationship from one layer to the other.

A balanced multi-layer transformer, comprising:

• one or more layers;
• a winding disposed on at least one of the one or more layers, the winding generating a magnetic flux;
• an inner magnetic core area formed by the winding, the magnetic core area being perpendicular to the magnetic flux;
• and
• a plate disposed on top of the at least one of the one or more layers, the plate providing a return path for the magnetic flux through a cross-sectional area of the plate;
• wherein the cross-sectional area of the plate covered by the magnetic flux is equal to the inner magnetic core area covered by the magnetic flux;
• and
• wherein the one or more layers are all formed of one material.

A balanced multi-layer transformer, comprising:

• one or more layers;
• a winding disposed on at least one of the one or more layers, the winding generating a magnetic flux;
• an inner magnetic core area formed by the winding, the magnetic core area being perpendicular to the magnetic flux;
• and
• a plate disposed on top of the at least one of the one or more layers, the plate providing a return path for the magnetic flux through a plate cross-sectional area;
• wherein the cross-sectional area of the plate covered by the magnetic flux is greater than the inner magnetic core area covered by the magnetic flux;
• and
• wherein the one or more layers are all formed of one material.