Medium frequency transformer with parallel windings

A medium frequency transformer for a resonant DC/DC converter or a dual active bridge DC/DC converter, comprising:

• a core having an air gap;
• a first coil surrounding a first section of the core;
• a medium voltage electric insulation surrounding the first coil;
• wherein the first coil comprises a plurality of M first windings;
• each of the plurality of M first windings comprising:
• a first termination and a second termination, and
• a conductor wound around the first portion of the core in at least one turn between the first and second termination;
• a plurality of M first terminals provided outside of the medium voltage electric insulation, each of said first terminals connected to a different one of the first terminations by one of a plurality of M first connectors, thus connecting each first terminal to a respective first termination;
• the transformer further comprising:
• a first channel extending from an outside of the medium voltage electric insulation into and at least partially through said medium voltage electric insulation, wherein the plurality of M first connectors extend through the first channel;
• wherein
• the plurality of M first connectors are insulated against one another by means of a low voltage electric insulation within the channel, and wherein no medium voltage and/or high voltage insulation is present between any two of the first connectors;
• the second terminations are connected to one another within or inside the medium voltage electric insulation;
• and
• a second terminal is provided outside of the medium voltage electric insulation, and connected to the second terminations by a second connector.