| 摘要 |
PURPOSE: A coil structure of a flyback transformer is provided to be capable of minimizing the volume of a coil and simplifying a winding process by severally winding first/second upper/lower conductor pattern parts on both sides of upper/lower and immediate thin insulating films. CONSTITUTION: I/O exposure conductors(a,b) is formed by locally exposing both ends of an upper thin insulating film(100) of rectangular shape. First/second upper conductor pattern parts(210,220) are severally wound in a clockwise from the conductors(a,b) toward a center. An intermediate thin insulating film is attached under the thin insulating film(100). First/second conductive through holes(410,420) are respectively connected to one ends of the conductor pattern parts(210,220) to be extended downwardly through the intermediate thin insulating film. First/second lower conductor pattern parts are severally wound in a counter clockwise on a bottom of the intermediate thin insulating film. A bottom thin insulating film is bonded under the intermediate thin insulating film.
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