Patent ID: 8223509
Filing Date: 2012-07-17
Classification: H01F,H02M

Abstract:
1. An integrated transformer comprising: a core part comprising: first and second supports each having a predetermined length and separated from each other by a predetermined distance, the first and second supports each having one end, the other end provided at a side opposite to the one end, and a middle end provided between the one end and the other end; and first and second outer legs and a center leg provided between the first and second supports and magnetically coupled with the first and second supports, the first and second outer legs connecting one set of ends and the other set of ends of the first and second supports to each other, the center leg magnetically connecting the middle ends of the first and second supports to each other; and a coil part including a primary winding wound on the center leg, a secondary winding wound on the center leg and electrometrically coupled to the primary winding, and an inductor winding wound on at least one of the first and second outer legs to stabilize power by electromagnetic interaction between the primary and secondary windings, wherein a cross-section of the first and second outer legs and a cross-section of the center leg have a width of the first support and a width of the second support in a longitudinal direction, respectively, and a width of each of the first and second outer legs exceeds 0.5 times a width of the center leg but does not exceed 2 times the width of the center leg.