Inductance element

An transformer comprising:

• a coil former;
• two wires wound around the coil former;
• and
• an electrical insulation positioned intermediate the two wires,
• the coil former having a cylindrical sleeve with a cylinder axis running parallel to a winding axis of the two wires, and two side walls arranged perpendicularly to the winding axis,
• each of the two walls having a shoulder,
• the cylindrical sleeve and the shoulders of the two side walls forming an inner winding space of a first length along the winding axis,
• a first of the two wires filling the inner winding space,
• the electrical insulation resting on an entire length of the shoulders of the two side walls and separating the first of the two wires from a second of the two wires,
• the entire length of the electrical insulation and the a portion of the two side walls apart from the shoulders forming an outer winding space of a second length along the winding axis,
• a second of the two wires filling the outer winding space,
• the first length being less that the second length.

An transformer comprising:

• a coil former having a cylindrical sleeve with a cylinder axis running parallel to a wire winding axis, and two side walls arranged perpendicularly to the winding axis, the two side walls having a shoulder portion and a non-shoulder portion,
• the cylindrical sleeve and the shoulder portions of the two side walls defining an inner wire winding space with a first length along the wire winding axis;
• an electrical insulation positioned along an upper surface area of the shoulder portions of the two side walls,
• the electrical insulation and the non-shoulder portions of the two side walls defining a outer wire winding space with a second length along the wire winding axis, the second length being greater than the first length;
• a first wiring filling the inner wire winding space;
• and
• a second wiring arranged along an entire length of the electrical insulation and filling the outer wire winding space.