照明工程学报2017，Vol.28Issue(5)：42-45,58,5.DOI:10.3969/j.issn.1004-440X.2017.05.009
一种单绕组Triac调光LED驱动电路设计
A Single Winding LED Driver Based on Triac Dimming
李强 1李欢 1张争 1赵怀友1
作者信息
- 1. 南京理工大学自动化学院,江苏南京210094
- 折叠
摘要
Abstract
First,the principle of Triac dimmer was described.Then,based on Buck-Boost topology,the power factor correction and constant current output strategy of AL1696 was analyzed.Next,a LED driver,which can be used in Triac dimming,with single winding for power supply was designed.The sampling resistance and inductance parameter was calculated as well.Finally,the output voltage,output current,PF,THD,efficiency and dimming curve of the driver were tested,by means of analyzing the test data.It's verified that the driver achieved high PF up to 0.93,high efficiency over 85％,and good Triac dimmer compatibility.关键词
LED/Triac调光/AL1696Key words
LED/Triac dimming/AL1696分类
信息技术与安全科学引用本文复制引用
李强,李欢,张争,赵怀友..一种单绕组Triac调光LED驱动电路设计[J].照明工程学报,2017,28(5):42-45,58,5.
