中文摘要：

为克服现阶段光疗系统普遍存在的效率低、副作用多、人机交互困难等缺陷，根据国内外光疗设备现状，设计一种大功率LED医用光疗系统.设计了光疗系统的光源模块、恒流驱动模块、显示控制模块和人机交互模块，实现了光辐照度稳定输出并且可线性调节.实验结果表明：该光疗系统可正常工作，蓝绿光辐照度、光均匀性均达标，与传统光疗系统相比，具有更安全、高效、稳定及人机交互便捷等优点.

英文摘要：

In order to overcome the defects of the prevalence of low efficiency, side effects and the difficulty of man-machine interaction in the present phototherapy system, a high-power LED medical phototherapy system was designed based on the status quo of the phototherapy equipments in China and abroad. The light source module,the constant current driver module, display module and man-machine interaction module of the phototherapy system were designed and the light irradiance stable output was realized and could be adjusted linearly. The experimental results show that the phototherapy system can work normally, blue and green light irradiance is standard with the advantages of being more secure, efficient,stable and convenient in man -machine interaction compared with the traditional phototherapy system.