| 摘要 |
The multi-layer transformer 10 of the present invention comprises a composite sheet 14 a comprising a center magnetic pattern 11 a and peripheral magnetic pattern 12 a that are formed at the center and periphery respectively, and a dielectric pattern 13 a of a nonmagnetic body that is formed in a part except the center and periphery; a composite sheet 14 b similarly comprising a center magnetic pattern 11 b, peripheral magnetic pattern 12 b and a dielectric pattern 13 b; a primary winding 15 a that is located on one face of the dielectric pattern 13 a; a secondary winding 15 b that is located on one face of the dielectric pattern 13 b; and magnetic sheets 16 a and 16 b that hold the composite sheets 14 a and 14 b, primary winding 15 a and secondary winding 15 b from both sides and contact one another via the center magnetic patterns 11 a and 11 b and peripheral magnetic patterns 12 a and 12 b.
|
