Power supply module

A power supply module, comprising:

• a plurality of pins;
• a magnetic core, comprising:
• a first magnetic plate;
• and
• a second magnetic plate below the first magnetic plate and parallel to the first magnetic plate, the first magnetic plate and the second magnetic plate forming a magnetic loop;
• a first upper wiring layer disposed above the first magnetic plate;
• a first middle wiring layer disposed between the first magnetic plate and the second magnetic plate;
• a first lower wiring layer disposed below the second magnetic plate, wherein at least a part of the first upper wiring layer and at least a part of the first middle wiring layer are connected to form a first winding surrounding the first magnetic plate, at least a part of the first lower wiring layer and at least a part of the first middle wiring layer are connected to form a second winding surrounding the second magnetic plate, and the magnetic core, the first winding and the second winding form a magnetic element;
• and
• a switch electrically connected to the magnetic element,
• wherein the magnetic loop surrounds a first axis, the first winding surrounds a second axis, the second winding surrounds a third axis, the first axis, the second axis and the third axis are parallel to a plane where centers of the plurality of pins are located, the middle wiring layer is disposed on or in a first middle circuit board, and the plurality of pins are disposed on both inclined end surfaces of the first middle circuit board.