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    • 8. 发明授权
    • Horizontal deflection circuit
    • 水平偏转电路
    • US6124686A
    • 2000-09-26
    • US133992
    • 1998-08-14
    • Ken KikuchiJunzo WatanabeBan KawamuraHidetaka Honji
    • Ken KikuchiJunzo WatanabeBan KawamuraHidetaka Honji
    • H04N3/223H04N3/233G09G1/04H01J29/70
    • H04N3/223H04N3/233
    • A horizontal deflection circuit is provided in which a large retrace pulse voltage applied to a horizontal deflection yoke can be taken to reduce the deflection current and which is capable of easily performing horizontal image size adjustment and distortion adjustment. A parallel connection of a switching element, a damper diode, and a resonance capacitor is connected in series to a parallel connection of another switching element, another damper diode, and another resonance capacitor, and power is supplied from the connection point via a fly-back transformer. The comparison value of the retrace pulse voltages applied across both ends of the switching elements is fed back through a switching element control circuit to the switching element so that the deflection current of the horizontal deflection yoke is controlled.
    • 提供一种水平偏转电路,其中可以采取施加到水平偏转线圈的大回扫脉冲电压来减小偏转电流,并且能够容易地进行水平图像尺寸调整和变形调整。 开关元件,阻尼二极管和谐振电容器的并联连接到另一个开关元件,另一个阻尼二极管和另一个谐振电容器的并联连接,并且从连接点通过飞行连接点供电, 后变压器。 将开关元件两端施加的回扫脉冲电压的比较值通过开关元件控制电路反馈到开关元件,从而控制水平偏转线圈的偏转电流。
    • 9. 发明授权
    • Bi-directional scan circuit
    • 双向扫描电路
    • US5349274A
    • 1994-09-20
    • US65156
    • 1993-05-21
    • Junzo WatanabeAkihiro UeyamaBan Kawamura
    • Junzo WatanabeAkihiro UeyamaBan Kawamura
    • H04N3/30G09G1/04H01J29/70
    • H04N3/30
    • In a dual direction horizontal bi-directional scan circuit, deterioration of the picture quality is prevented, while linearity is improved without supplying wasteful deflecting current, and pin distortion is corrected. The deflecting current in the going scan and in the returning scan are supplied to each deflecting coil by first and second resonance circuits, and capacitors substantially the same in capacitance are provided in the first and second resonance circuits to bias the deflecting voltage so that the terminal voltage and the power source voltage of the capacitors are synchronized to the vertical synchronizing signals to produce a parabolic modulation.
    • 在双向水平双向扫描电路中,防止了图像质量的劣化,同时线性度提高而不产生浪费的偏转电流,并且针脚失真被校正。 正向扫描和返回扫描中的偏转电流由第一和第二谐振电路提供给每个偏转线圈,并且在第一和第二谐振电路中提供基本相同的电容的电容器以偏置偏转电压,使得端子 电压和电容器的电源电压与垂直同步信号同步以产生抛物面调制。