Patent ID: 8742877

Claim:
A multi-winding magnetic structure comprising: a magnetic core including a first column, a second column and a third column, the first column and the second column spaced apart from each other to define a winding window between the first column and the second column, a core top overlying the first, second and third columns and defining a top of the winding window, and a core bottom underlying the first, second and third columns and defining a bottom of the winding window; a first winding positioned around the first column, the first winding including a plurality of turns of winding material, the plurality of turns of the first winding passing through the winding window; and a second winding positioned around the second column, the second winding including a plurality of turns of winding material the plurality of turns of the second winding passing through the winding window; a third winding positioned around the third column; the first winding and second winding extending in a same direction around the first and second column, the plurality of turns of the first winding alternating with the plurality of turns of the second winding in the winding window in a direction from the core top to the core bottom.