| 摘要 |
PURPOSE:To enable mass-production, by making easy the adjustment of the coupling coefficient of the high frequency tuning between the primary secondary coil, through the winding for the grooves of the sencondary bobbin in grouping. CONSTITUTION:The primary winding 2 is wound in the ferrite core 1, the secondary bobbin 3 is placed on it, and a plurality of slots in the bobbin 3 are sectored into the groups G1 and G2, and the winding 4 of n1 and n2 turns are wound on each group slot. As a result, the coupling coefficient to the high frequency tuning between thr primary winding 2 and the secondary winding 4 can easily be adjusted. |
