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提出一种基于发光二极管(LED)开发的便携式光强可调黄疸光疗仪。仪器选用蓝色LED实现特殊阵列排布,并基于芯片MAX5035构建恒流驱动电路,驱动电流受单片机ATmega16L程序控制,可实现对仪器光照强度的线性调节,并将其对应光强值显示在液晶12864。与传统黄疸光疗仪相比,仪器体积小,光照强度强,并能实现一定范围光强调节。
A portable light intensity adjustable jaundice phototherapy instrument based on light emitting diode (LED) was proposed. The instrument uses a blue LED to achieve a special array arrangement and build a constant current driver circuit based on the chip MAX5035. The driving current is controlled by a microcontroller ATmega16L program. The linear adjustment of the light intensity of the instrument can be realized and the corresponding light intensity value is displayed on the LCD 12864 . Compared with the traditional jaundice phototherapy instrument, the instrument is small, light intensity, and can achieve a range of light intensity adjustment.