| 摘要 |
PURPOSE:To remove noise in a wide frequency range by combining a ferrite core on which an electric wire is wound and compounds containing magnetic powder for covering the electric wire in composite structure. CONSTITUTION:A power cable is made in a composite structure from combination of a ferrite core 11 on which an electric wire is wound and compounds containing magnetic powder for covering the electric wire. For ex., a plug body 12 is formed from plastic compound containing magnetic powder, and even at the parallel portion 13 the plastic compound with mag. powder is used. A common mode choke coil is formed consolidated in the plug body 12, and the ferrite core 11 on which electric wire is wound and the plastic compound with mag. powder are installed in composite structure. In this power cable, the ferrite core and the compound with mag. powder absorb the noise in a wide frequency range in synergetically. Thus noises in a wide frequency range incl. high range can be removed. |
