基于VIPer22A芯片的220V恒流可调光LED台灯设计与实现

Design and Implementation of 220V Dimmable LED Lamp of Constant Current Based on VIPer22A Chip

运用VIPer22A、PT4105芯片设计的1～3W恒流可调光LED台灯,具有效率高、成本低、光线稳定、无频闪、无眩光、显色指数高等优势,满足桌面照明要达到150lx照度、显色指数不低于80的标准要求,具有非常好的市场前景。

The dimmable LED lamp of constant current whose power consumption is 1-3W uses VI- Per22A and PT4105 chips. It has such strengths as high efficiency, low cost, light stability, high color rendering index, no flicker, and no glare. It also meets the standard requirements of the desktop lighting to achieve 1501x illumination and color rendering index of no less than 80. It has a promising market.