公开(公告)号：US20080315780A1

公开(公告)日：2008-12-25

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 ,  H05B41/36

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。