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    • 9. 发明授权
    • Highly integrated non-inductive LED driver
    • 高度集成的无感LED驱动器
    • US08698407B1
    • 2014-04-15
    • US13295868
    • 2011-11-14
    • Timothy ChenJohn Boyle
    • Timothy ChenJohn Boyle
    • H05B37/00H05B39/00H05B41/00
    • H05B33/0812Y02B20/345
    • An inductorless LED driver powers a string of low current LEDs. A phase controlled triac dimmer, serially connected to a full-wave rectifier circuit, performs as an LED current and triac holding current control element. The output of the full-wave rectifier circuit is divided into two circuit paths; the first path provides power to drive a string of serially-connected low-current LEDs, and the second path connects to a dynamic load, which supplies a holding current that flows through the triac dimmer. There are two feedback control systems; the first regulates the luminance of the LEDs; the second regulates the triac holding current to eliminate lamp flicker.
    • 无电感LED驱动器为一串低电流LED供电。 串联连接到全波整流电路的相控三极双向可控硅调光器作为LED电流和三端双向可控硅开关元件保持电流控制元件。 全波整流电路的输出分为两路电路; 第一路径提供驱动一串串联的低电流LED的电力,并且第二路径连接到动态负载,动态负载提供流过三端双向可控硅调光器的保持电流。 有两个反馈控制系统; 首先调节LED的亮度; 第二个调节三端双向可控硅开关电压以消除灯闪烁。