INTEGRATED TEANSFORMER AND POWER SUPPLY USING THEREOF

摘要

An integrated transformer and a power supply unit using the same are provided to prevent thermal unbalance by winding an inductor coil to an outer leg. A core part has a first supporting part(11), a second supporting part(12), a first outer leg(13), a second outer leg(14), and a center leg(15). The first outer leg magnetically connects one ends of the first supporting part and the second supporting part. The second outer leg magnetically connects the other ends of the first supporting part and the second supporting part. The center leg magnetically connects center ends of the first supporting part and the second supporting part. A coil part has a first coil(P1), a second coil(S1,S2), and an inductor coil(Lo1,Lo2). The first coil and the second coil are wound in the center leg. The second coil is electromagnetically coupled with the first coil. The inductor coil is wound in one among the first outer leg and the second outer leg. The inductor coil stabilizes a power source by electromagnetic operation of the first coil and the second coil.