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    • 9. 发明授权
    • Deflection yoke
    • 偏转轭
    • US5397968A
    • 1995-03-14
    • US122247
    • 1993-09-16
    • Masaaki ItoTomohiro Akaki
    • Masaaki ItoTomohiro Akaki
    • H01J29/76H01J29/96G09G1/28G09G1/04H01J29/56
    • H01J29/96H01J29/762
    • Deflection yoke of self-convergence system for deflecting electron beams of a color picture tube, has a pair of saddle type horizontal deflection coils and a pair of saddle type vertical deflection coils of first and second coils connected in series each other, a winding of each of the first and the second coils has a start, a finish and a tap provided between the start and the finish, the deflection yoke further has a diode block composed of diodes connected in parallel and reversed polarity each other. The deflection yoke features that the diode block is connected between the start and the tap of the respective first and second coils, or between the taps of the respective first and second coils, or between the start of the first coil and the start of the second coil, so that misconvergence of the electron beams is minimized. In order to compensate a resistance increase of the vertical deflection coils when temperature thereof rises, a temperature compensation circuit may further be connected in series to the vertical deflection coils.
    • 用于偏转彩色显像管的电子束的自会聚系统的偏转线圈具有一对鞍型水平偏转线圈和一对彼此串联连接的第一和第二线圈的鞍形垂直偏转线圈, 第一线圈和第二线圈的起始点,终点线和提供在起点和终点之间的抽头,偏转线圈还具有由二极管并联连接并且彼此极性相反的二极管块。 偏转线圈的特征在于二极管块连接在相应的第一和第二线圈的起始和抽头之间,或者在相应的第一和第二线圈的抽头之间,或者在第一线圈的起始点和第二线圈的开始之间 线圈,使得电子束的失会聚最小化。 为了补偿垂直偏转线圈的温度升高时的电阻增加,温度补偿电路还可以与垂直偏转线圈串联连接。