Annular magnetic power unit

An annular magnetic power unit comprising:

• an annular magnetic core defining an inner passage and a annular groove, said annular magnetic core comprising
• a first partial magnetic core and a second partial magnetic core, overlapped and facing to each other;
• at least said first partial magnetic core having a first annular groove constitutive of said annular groove, accessible through a surface of the first partial magnetic core facing the second partial magnetic core;
• said first annular groove surrounding the inner passage;
• at least one electro-conductive inner coil included within the annular groove;
• at least one electro-conductive outer coil wound around the annular magnetic core passing through the inner passage;
• wherein
• said at least one electro-conductive outer coil comprises two independent electro-conductive outer coils, named left and right independent electro-conductive outer coils;
• the first partial magnetic core is divided by two parallel air-gaps in three independent parts corresponding to a first central magnetic core portion, defined between said two parallel air-gaps, to a first left-side core portion and to a first right-side core portion placed on both sides of said first central magnetic core portion;
• the second partial magnetic core is also divided by said two parallel air-gaps in three independent parts corresponding to a second central magnetic core portion, defined between said two parallel air-gaps, to a second left-side core portion and to a right-side core portion placed on both sides of said second central magnetic core portion;
• the two-parallel air-gaps are defined by two parallel gap planes perpendicular to a surface of the first partial magnetic core facing the second partial magnetic core, both parallel gap planes passing through the inner passage;
• the first central magnetic core portion and the second central magnetic core portion define correspondent first and second bridges across the inner passage, dividing said inner passage in a left inner passage and a right inner passage;
• the left electro-conductive outer coil passes through the left inner passage and surrounds the first and second left side core portions;
• and
• the right electro-conductive outer coil passes through the right inner passage and surrounds the first and second right side core portions.