| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a three-phase high frequency transformer which is suitable for a power conversion device and a power supply device. <P>SOLUTION: The three-phase high frequency transformer includes: a ferrite core comprising three columnar cores, a top plate and a bottom plate; and three coils each including a primary coil formed by bending a rectangular wire a plurality of times along the width of the rectangular wire and having a predetermined internal diameter, and a secondary coil formed by bending a rectangular wire differing in width from the rectangular wire along the width of the rectangular wire to have an internal diameter equal to the internal diameter of the primary coil, and arranged so that the rectangular wire constituting the secondary coil is interposed in an interval of the rectangular wire constituting the primary coil, inner peripheries of the primary coil and second coil are aligned with each other, and the columnar cores are inserted into them, wherein at least one of the primary coil and second coil is connected in a Y shape. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
