| 摘要 |
PURPOSE:To suppress the occurrence of a ringing by forming a filter in a horizontal-vertical circuit against the occurrence of a high frequency parasitic current serving as a ringing current. CONSTITUTION:A transformer 7 is connected between the horizontal coil terminals (H1, H2) 3 provided on a terminal board 2 of a deflecting yoke main body 1 and the horizontal cords 6 connected to a terminal 5 of a sweep circuit. The transformer 7 contains the independent winding wires of the same number of turns at the sides of the coil terminals H1 and H2, respectively. In this case, both winding wires are wound in such directions where the magnetic fluxes of the cores generated by the currents of the H1 and H2 sides are eliminated with each other. At the same time, the vertical coils (V1, V2) 4 are provided on the board 2. Thus, it is possible to secure a function of a high impedance element only to the unnecessary high frequency ringings overflowing to another deflecting coil without deteriorating the deflecting coil current flowing to the deflecting coil by inserting the transformer 7 to the terminal of the deflecting coil in a common mode. |
