Electromagnetic filter for operating in common and differential mode

An electromagnetic filter configured to operate in common and differential mode, comprising:

• a toroidal-like magnetic core;
• first and second separated coils wound around the toroidal-like magnetic core and arranged around a Z axis that is coaxial with an inner hollow part of the toroidal-like magnetic core, the first and second separated coils and the toroidal-like magnetic core being configured to provide a common mode filter, the first and second separated coils are arranged in opposition to each other and around two major separated segments of the toroidal-like magnetic core;
• a third coil that is arranged to surround the toroidal-like magnetic core, the third coil being configured to provide a filter operating in differential mode;
• at least one capacitor;
• two sheets arranged between opposite external faces of the capacitor to thermally isolate the capacitor from the first and second separated coils;
• the capacitor and the two sheets being arranged inside the inner hollow part of the toroidal-like magnetic core;
• and
• a layer of a thermal conductive magnetic compound configured to enclose the toroidal-like magnetic core, the first, second and third coils, the capacitor and the two sheets, such that leakage inductance is increased, a magnetic field generated by the third coil is enclosed, and a good thermal link to a cooling plate is provided.