| 摘要 |
<p>PURPOSE:To reduce crosstalk through reduction of a current value produced by the effect of electric field among the currents produced in a coil not related to the inherent signal transmission, by providing a short-circuitted short ring between coils and electrically grounding the short ring. CONSTITUTION:Since magnetic flux passing through a magnetic path C4 is reduced by an eddy current effect of short ring 8, a current I4 produced by the effect of magnetic field can be lowered by the short ring 8. Meanwhile, potential is distributed in the peripheral field due to the surface voltage of S coil 5b which is an input source but since the short ring 8 is grounded through a winding pin 10, potential at the area near the R coil 6a becomes small. There fore, a current I5 produced by the effect of electric field can also be lowered in comparison with that in the case where the short ring is not grounded. There by, intensity of electric field at the region near the coil not related to the inher ent signal transmission can be lowered, a current produced by the effect of electric field can be lowered than that obtained when the short ring 8 is not grounded and crosstalk can be reduced.</p> |
