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    High-voltage stabilization circuit of a monitor
    1.
    发明授权
    High-voltage stabilization circuit of a monitor 失效
    监视器的高压稳定电路

    公开(公告)号：US5699236A

    公开(公告)日：1997-12-16

    申请号：US655798

    申请日：1996-05-30

    申请人： Hyun-Chil Choi

    发明人： Hyun-Chil Choi

    IPC分类号： G06F1/26 ,  G09G1/00 ,  H04N3/185 ,  H02J1/00

    CPC分类号： H04N3/185

    摘要： A high-voltage stabilization circuit of a monitor can detect accurately a change of a high voltage of a secondary winding of a high-voltage transformer. The high-voltage stabilization circuit of a monitor including a high-voltage transformer for inputting the plurality of signals and outputting the plurality of voltages; a high-voltage signal output circuit for rectifying a first output voltage among the plurality of outputted voltages, and for supplying the first output voltage to a cathode ray tube; a detection circuit for inputting a second output voltage lowest voltage among the plurality of outputted voltages and a third output voltage greater than the second output voltage and lowest among the plurality of outputted voltages, and for outputting an average voltage of the second output voltage and the third output voltage as a detection signal; and a control circuit for inputting a first signal from outside and a detection signal of the detection circuit, and for generating a first input signal among the plurality of input signals by varying a duty ratio of the first signal by controlling the first signal according to the detection signal. The change of a first output voltage of a high-voltage transformer can be detected accurately by a direct sensing from a high-voltage transformer.

    摘要翻译： 监视器的高压稳定电路可以精确地检测高压变压器的次级绕组的高电压的变化。 包括用于输入多个信号并输出​​多个电压的高压变压器的监视器的高压稳定电路; 用于对多个输出电压中的第一输出电压进行整流，并将第一输出电压提供给阴极射线管的高电压信号输出电路; 用于输入所述多个输出电压中的第二输出电压最低电压的检测电路和大于所述多个输出电压中的所述第二输出电压和最低的第三输出电压，并且用于输出所述第二输出电压的平均电压和 第三输出电压作为检测信号; 以及用于从外部输入第一信号和检测电路的检测信号的控制电路，并且用于通过根据第一信号控制第一信号来改变第一信号的占空比来产生多个输入信号中的第一输入信号 检测信号。 可以通过高压变压器的直接感测来精确地检测高压变压器的第一输出电压的变化。