Magnetic element, magnetic element setting method and direct current converter

The embodiment of the invention discloses a magnetic element, a magnetic element setting method and a direct current converter, a first sub-winding and a second sub-winding are respectively wound on two side columns of a side column group, and the magnetic flux generated by the first sub-winding and the second sub-winding on a middle column is counteracted. Therefore, magnetic flux generated by the first sub-winding and the second sub-winding does not pass through the middle column, the first winding and the second winding share the magnetic core column of the magnetic element, the magnetic core column in the magnetic element is reused, the problem that magnetic elements are arranged for the first winding and the second winding respectively, and consequently the number of the magnetic elements is large is solved, and the magnetic element utilization rate is improved. The volume and the cost of the magnetic element in the converter are reduced. 本申请的实施例公开了一种磁元件、磁元件设置方法以及直流变换器，第一子绕组和所述第二子绕组分别绕制于所述边柱组的两个边柱上，且所述第一