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    • 7. 发明公开
    • Printed circuit board and liquid crystal display having the same
    • Leiterplatte undFlüssigkristallanzeigedamit
    • EP2086097A2
    • 2009-08-05
    • EP07024472.8
    • 2007-12-18
    • Samsung Electronics Co., Ltd.
    • Hong, Hyun-seokJeon, Myoung-haLee, Geun-ho
    • H02M3/155
    • G09G3/3696G09G2330/02G09G2330/06H05K1/0298H05K1/181H05K2201/1003H05K2201/10174Y02P70/611
    • A printed circuit board for a liquid crystal display that has a structure for preventing interference between a feedback voltage generating unit or a compensating unit of a DC-DC converter and a pulse signal wiring line. The printed circuit board has a boosting circuit for boosting an input voltage to generate an analog driving voltage and a pulse signal, the boosting circuit including a control chip and an inductor coupled between an input voltage node and the control chip, the control chip supplied with a feedback voltage for controlling the amount of current flowing through the inductor, a feedback voltage generating circuit for supplying the feedback voltage to the control chip by using the analog driving voltage, and a pulse signal wiring line connecting the control chip and the inductor, and separated from the feedback voltage generating circuit.
    • 一种用于液晶显示器的印刷电路板,其具有防止DC-DC转换器的反馈电压产生单元或补偿单元与脉冲信号布线之间的干扰的结构。 印刷电路板具有用于升压输入电压以产生模拟驱动电压和脉冲信号的升压电路,所述升压电路包括耦合在输入电压节点和控制芯片之间的控制芯片和电感器,所述控制芯片提供 用于控制流过电感器的电流量的反馈电压,通过使用模拟驱动电压将反馈电压提供给控制芯片的反馈电压产生电路和连接控制芯片和电感器的脉冲信号布线,以及 与反馈电压发生电路分离。