公开(公告)号：US09049764B2

公开(公告)日：2015-06-02

申请号：US14261613

申请日：2014-04-25

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Chuh-Ching Li ,  Ming-Chieh Lee ,  Kuo-Hsien Huang

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  Y02B20/347

摘要： A LED drive circuit according to the present invention comprises a controller and a programmable signal. The controller generates a switching signal coupled to switch a magnetic device for generating an output current to drive a plurality of LEDs. The programmable signal is coupled to regulate a current-control signal of the controller. The switching signal is modulated in response to the current-control signal for regulating the output current, and the level of the output current is correlated to the current-control signal.

摘要翻译： 根据本发明的LED驱动电路包括控制器和可编程信号。 控制器产生耦合以切换磁性装置以产生输出电流以驱动多个LED的切换信号。 可编程信号被耦合以调节控制器的电流控制信号。 响应于用于调节输出电流的电流控制信号来调制开关信号，并且输出电流的电平与电流控制信号相关。