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基于SSL2101T的LED可控硅调光驱动电路设计

更新时间:2020-08-13 11:05:16 大小:254K 上传用户:xiaohei1810查看TA发布的资源 标签:ssl2101tled可控硅驱动电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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设计了一种基于SSL2101T的支持可控硅调光的LED驱动电路。该电路采用反激式拓扑结构,输入220V/50Hz交流电,外接常规的可控硅调光器,可实现无闪烁平滑调光。该驱动电路在支持可控硅调光的同时,兼顾了效率和功率因数。这里对可控硅调光器和调光驱动电路的原理进行了简要介绍,分析了调光控制原理,阐述了变压器设计过程。实验结果表明,该电路演示样板满载效率为73%,功率因数达到0.762,可在0~347.7m A范围内平滑无闪烁调光。

A Triac dimmable LED topology with an extra Triac dimmer driver based on SSL2101T is designed. The driver based on flyback and a 220V/50Hz mains input achieves flicker free, smooth dimming. The proposed driver has acceptable efficiency and power factor. The Triac dimmer and the driver are introduced and the dimming control theorem is analyzed. The design of the transformer is demonstrated in details. Experimental results show that the full load efficiency of a demo board is 73% , power factor 0. 762 and the dimming range from 0 to 347.7mA.

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基于SSL2101T的LED可控硅调光驱动电路设计.pdf 254K

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