Multistage structure electromagnetic device

A multistage structure electromagnetic device, comprising a plurality of electromagnetic components stacked in multiple stages,

• wherein each of the plurality of electromagnetic components includes:
• an outer circumferential iron core;
• at least three leg iron cores disposed at intervals in a circumferential direction on an inner surface side of the outer circumferential iron core;
• and
• coils respectively wound around the at least three leg iron cores, wherein:
• each of the at least three leg iron cores is disposed such that one end in a direction of a winding axis line of the coil, of the each of the at least three leg iron cores, is magnetically connected to the outer circumferential iron core, and the other end in the direction of the winding axis line is magnetically connected to the other end of another leg iron core among the at least three leg iron cores;
• and
• the coils wound around the at least three leg iron cores of an electromagnetic component in one stage among the plurality of electromagnetic components stacked in the multiple stages and the coils wound around the at least three leg iron cores of the electromagnetic component in another stage among the plurality of electromagnetic components stacked in the multiple stages are respectively connected in series.