The　flyback　power　converter　with　multi-output　LED　current　sharing　was　studied.　The　novel　magnetics　integration　scheme　was　proposed　by　combining　power　transformer　and　current-sharing　coupling　inductor　in　a　single　magnetic　core　structure.　With　electrical　and　magnetic　theory　and　electrical　circuit　and　magnetic　circuit　syno　simulation,　the　operation　principle,　operation　waveforms　and　current-sharing　output　characteristics　were　analyzed　in　details.　The　analysis　and　experimental　test　results　showed　its　excellent　multi-output　current-sharing　behaviors　and　＜3%　current-sharing　accuracy　was　ensured　even　with　eight　times　load　difference,　which　fully　satisfied　the　requirement　of　engineering　applications.　The　proposed　scheme　has　many　advantages　such　as　advanced　magnetic　integration　technology,　simple　structure,　no　extra　current-sharing　control　circuit　needed,　higher　reliability,　high　efficiency,　high　power　density,　lower　cost　and　etc.,　and　has　practical　applications　in　multi-output　LED　driving　power　supplies.　©　2012　Chin.　Soc.　for　Elec.　Eng.