Due　to　low　cost　and　high　efficiency　advantages,　AC-DC　single-stage　LED　driver　has　been　widely　used,　But　there　is　existing　the　problem　of　larger　twice　line　frequency　output　ripple,　and　current　ripple　is　one　of　the　important　factors　to　affect　LED　light-emitting　properties　and　lifetime.　A　suitable　kind　of　LED　driver　that　single-stage　flyback　PFC　circuit　based　on　auxiliary　winding　and　current　ripple　suppression　strategies　is　proposed　in　this　paper,　the　working　principle　of　the　proposed　circuit　and　the　implementation　condition　of　low　output　current　ripple　are　analyzed　in　detail.　The　simulation　and　experiment　are　carried　out　to　verify　the　correctness　and　feasibility　of　the　theoretical　analysis,　in　switch　the　output　current　ripple　can　be　reduced　effectively　through　the　proposed　single-stage　LED　driver,　and　the　input　characteristics　doesn＇t　be　affected.　©　2015　IEEE.