| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a transformer wherein its coupling degree is made high, and its occupied volume rate is improved, and further, its surge voltage is reduced. <P>SOLUTION: The transformer has: a second coil 63 wound around a core 10; a first coil 62 wherein it constitutes the other side of the first and second sides of the transformer, and a plurality of lead wires connected with a plurality of taps are wound around the core 10 adjacently to the second coil 63; and a third coil 64 wherein a plurality of lead wires connected with the same taps as the plurality of taps of the first coil 62 being connected therewith are so wound around the core 10 adjacently to the opposite side of the first coil 62 as to sandwich the second coil 63 between them and the coil 62. In the first and third coils 62, 64, a plurality of lead wires lined in parallel with each other are so formed respectively that the first coil 62 is wound around the core 10 spirally in a first layer from its outer-diameter side to its inner-diameter side, and that the third coil 64 is wound around the core 10 spirally in a second layer adjacent to the first layer from its inner-diameter side to its outer-diameter side. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
