A Single Winding LED Driver Based on Triac Dimming
LI Qiang
LI Huan
ZHANG Zheng
ZHAO Huaiyou
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.
Keywords：LEDTriac dimmingAL1696
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 42-45,58 )