| 摘要 |
PURPOSE:To improve efficiency of coil winding through rough coupling between both windings making unnecesary insertion of insulating layer by employing the wiring structure that both wirings of balanced and unbalanced wirings are arranged closely at the low voltage areas. CONSTITUTION:If balanced wirings 11, 12 are perfectly balanced, the connecting part of the wiring start point 11b and end point 12a becomes the neutral point of the balanced winding and is set to zero voltage. When the terminal in the unbalanced side is earthed, the start point 13a and end point 14b are set to zero voltage. Therefore, when the winding structure shown in the figure is employed, the low voltage areas of both balanced and unbalanced windings are arranged closely, while the high voltage areas of them are isolated. Meanwhile, capacitance between windings is much distributed at the area where the unbalanced winding is closely located to the balanced winding. But it is less distributed at the area being apart from such area and accordingly coupling between balanced and unbalanced windings through capacitance is as much reduced. Therefore, it is no longer necessary to provide an insulating layer at the interim of balanced and unbalanced windings. |
