利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.026 秒)

    Light emitting diode driving device
    1.
    发明授权
    Light emitting diode driving device 有权
    发光二极管驱动装置

    公开(公告)号：US07723922B2

    公开(公告)日：2010-05-25

    申请号：US12142375

    申请日：2008-06-19

    申请人： Sang Yun Lee ,  Chang Hoon Baek ,  Do Hun Kim ,  Hyung Suk Kim

    发明人： Sang Yun Lee ,  Chang Hoon Baek ,  Do Hun Kim ,  Hyung Suk Kim

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0815 ,  G02F1/133603 ,  G02F2001/133601 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/04 ,  G09G2330/12 ,  H05B33/0827 ,  H05B33/0857 ,  H05B37/0272 ,  Y02B20/347

    摘要： There is provided an integrated LED driving device including: a DC/DC converting part converting and outputting a DC voltage inputted from the outside by switching of a switch into a driving voltage of a magnitude suitable for driving a plurality of LED arrays; a constant current controlling part receiving at least one of information on the current flowing through the LED array and information on a voltage applied to the LED array by feed-back, the constant current controlling part including a PWM controller PWM-controlling a switching duty of the switch of the DC/DC converting part, and controlling a switching duty of each of the switches of the switching part to allow the current to flow through the LED array with a predetermined magnitude; and a control logic receiving a control signal by a user and controlling the PWM controller in response to the control signal.

    摘要翻译： 提供了一种集成LED驱动装置，包括：DC / DC转换部，通过将开关切换成适合于驱动多个LED阵列的大小的驱动电压，将从外部输入的DC电压转换并输出; 恒流控制部，其接收流经所述LED阵列的电流的信息和通过反馈施加到所述LED阵列的电压的信息中的至少一个，所述恒定电流控制部包括PWM控制器，PWM控制PWM控制 DC / DC转换部分的开关，并且控制开关部分的每个开关的开关占空比，以允许电流以预定的大小流过LED阵列; 以及控制逻辑，由用户接收控制信号，并根据控制信号控制PWM控制器。