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Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
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机译:微控制器优化的发光二极管(LED)的脉宽调制(PWM)驱动器
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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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