基于视觉舒适的LED驱动器评价方法

文章旨在建立LED驱动器的综合评价系统,为不同场合下的驱动器选型提供指导性意见.首先分析了驱动器评价的关键因素,包含驱动电路自身性能及同系统寿命匹配等因素.研究表明,考虑驱动电流、驱动方式、调光过程等因素都会影响到LED发光光谱的变化、光源颜色变化甚至影响视觉舒适性.因此本文还创新性地加入调光线性度、调光稳定度、频闪等视觉舒适性因素作为LED驱动器的评价指标.鉴于评价因素众多且无法以简单方程统一描述,利用层次分析法综合主观与客观多方面因素,构架了一个包含系统性能、电路性能、视觉性能三个方面的LED驱动综合评价系统,最后通过一个应用案倒分析,进一步说明了该评价系统的应用方法.

Integrated Evaluation System for LED Driver Concerned of Visual Comfort

The aim of paper is to establish suggestion for driver selection under analyzed firstly, inclu Besides, the research impact on the change visual comfort indexes an integrated evaluation system for LED driver, providing guiding various applications. ding driver performance and degree o shows that the factors of driver current, of SPD （Spectrum Power Distribution） system for LED driver. As the complex eval comprehensive evaluation system including sys for LED driver is built, based on the analytic Finally, an applicaion case is implemented an system. The key elements for driver evaluation are f match between driver and lighting system. driver mode and dimming procedure will have and color and visual comfort of LED. Thus, stability and strobe are added to the evaluation uation factors can not be described using one tem performance, circuit performance and visual hierarchy process combining subjective and objec d applied to clarify the promposed method for th equation, a performance tire factors. e evaluation