منابع مشابه
LED brightness control for video display application
The technique is suggested for a kind of pulse-width-modulation LED dimming in LED video displays. The significant increase of the gray levels number and image refresh frequency can be achieved when the large number of LEDs is controlled serially. The need for a large number of grayscale levels and high refresh rate is explained. The controlling data flow and the amount of buffer memory are the...
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Taking STC89C52RC single-chip as control core, this research realizes intelligent control function, which can automatically detect whether there is someone in the room and turn on/off LED table lamp; brightness of LED lamp can be adjusted with manual mode. In addition to that, it also has other functions such as displaying time and date, and posture correction. In general, time, data and bright...
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ژورنال
عنوان ژورنال: Journal of the Illuminating Engineering Institute of Japan
سال: 1996
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1980.80.appendix_278