Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
    1.
    发明授权
    Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED) 失效
    微控制器优化的脉冲宽度调制(PWM)驱动的发光二极管(LED)

    公开(公告)号:US08432106B2

    公开(公告)日:2013-04-30

    申请号:US12937936

    申请日:2009-04-06

    IPC分类号: H05B41/00 G05F37/02

    摘要: A method for operating a controlled illumination apparatus, the illumination apparatus comprising at least one pulse-width modulation (PWM)-controlled LED, the method comprising carrying out a duty cycle sweep of the PWM signal driving the LED while sensing at least one parameter indicative of the power consumption of the LED to compute a curve reflecting the duty-cycle dependency of the power efficiency of the LED.

    摘要翻译: 一种用于操作受控照明装置的方法,所述照明装置包括至少一个脉冲宽度调制(PWM)控制的LED,所述方法包括执行驱动LED的PWM信号的占空比扫描,同时感测至少一个参数指示 的LED的功耗来计算反映LED的功率效率的占空比依赖性的曲线。

    Microcontroller-optimized Pulse-width Modulation (PWM) Drive of a Light-emitting Diode (LED)
    2.
    发明申请
    Microcontroller-optimized Pulse-width Modulation (PWM) Drive of a Light-emitting Diode (LED) 失效
    发光二极管(LED)的微控制器优化脉宽调制(PWM)驱动

    公开(公告)号:US20110115396A1

    公开(公告)日:2011-05-19

    申请号:US12937936

    申请日:2009-04-06

    IPC分类号: H05B41/16

    摘要: A method for operating a controlled illumination apparatus, the illumination apparatus comprising at least one pulse-width modulation (PWM)-controlled LED, the method comprising carrying out a duty cycle sweep of the PWM signal driving the LED while sensing at least one parameter indicative of the power consumption of the LED to compute a curve reflecting the duty-cycle dependency of the power efficiency of the LED.

    摘要翻译: 一种用于操作受控照明装置的方法,所述照明装置包括至少一个脉冲宽度调制(PWM)控制的LED,所述方法包括执行驱动LED的PWM信号的占空比扫描,同时感测至少一个参数指示 的LED的功耗来计算反映LED的功率效率的占空比依赖性的曲线。