| 摘要 |
PURPOSE:To reduce unwanted radiation coming from a deflacting yoke device, by furthermore mounting canceling coils which qenerates a magnetic field opposite to the magnetic field passing through the inside of the core inside as one part of the horizontal deflecting magnetic field generated by horizontal deflecting coils. CONSTITUTION:Saddle-shaped horizontal deflecting coils 2, 3 and toroidal vertical deflecting coils 4, 5 are wound/mounted on the inner plane and the periphery of a circular core 1, so as to compose a deflecting yoke 7 used in a television receiver or the like. Furthermore, cancel coils 8,9 are mounted so that they are positioned in loop shapes on the X axis of the deflecting yoke 7 and wound/ disposed apparently in toroidal shapes toward the core 1. And they are connected in series with the horizontal deflecting coils 2,3 in order to generate a magnetic field opposite to the magnetic field which passes through the inside of the core 1 as one part of the horizontal magnetic field. Therefore the main magnetic field inside the core 1 is attenuated, together with being capable of effectively reducing the needless radiation which leaks outside the core 1. |
