发明授权
US08432106B2 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)

Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
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.
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