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1. 发明申请

US20110227503A1 SYSTEM AND METHOD FOR LED BACKLIGHT DRIVER FOR LCD PANELS 审中-公开
标题翻译：用于LCD面板的LED背光驱动器的系统和方法
公开(公告)号：US20110227503A1
公开(公告)日：2011-09-22
申请号：US12766667
申请日：2010-04-23
申请人： ShanShan Yuan , XinFeng Liu , XuGuang Zhang
发明人： ShanShan Yuan , XinFeng Liu , XuGuang Zhang
IPC分类号： H05B41/36
CPC分类号： G09G3/3406 , G09G2320/0233 , H05B33/0827
摘要： A power supply control system for driving light-emitting diode (LED) loads includes a first power switch for coupling to a voltage source, and a plurality of second power switches, each of which is configured for coupling to one of a corresponding plurality of LED loads. Each of the LED loads can include multiple light-emitting diodes (LEDs) connected in series. The power supply control system also includes an integrated circuit controller that includes a voltage controller configured to control the first power switch to provide an output voltage to each of the LED loads, and a current controller configured for coupling to each of the plurality of second power switches to provide a current through each of the LED loads. The integrated circuit controller is provided in a low-voltage integrated circuit chip, and the first power switch and the plurality of second power switches are high-voltage devices external to the low-voltage integrated circuit chip.
摘要翻译：用于驱动发光二极管（LED）负载的电源控制系统包括用于耦合到电压源的第一电源开关和多个第二电源开关，每个第二电源开关被配置为耦合到相应的多个LED 负载每个LED负载可以包括串联连接的多个发光二极管（LED）。电源控制系统还包括集成电路控制器，其包括被配置为控制第一电源开关以向每个LED负载提供输出电压的电压控制器，以及被配置为耦合到多个第二电力中的每一个的电流控制器开关以提供通过每个LED负载的电流。集成电路控制器设置在低电压集成电路芯片中，第一电源开关和多个第二电源开关是低压集成电路芯片外部的高压器件。

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