A　novel　current　doubler　rectifier　with　magnetic　integration　in　switching-mode　power　converter　was　proposed　to　improve　efficiency　and　power　density.　With　the　operation　theory　of　half-bridge　converter,　the　AC　and　DC　fluxes　in　the　integrated　magnetics　were　discussed　in　detailed.　The　equivalent　circuit　model　is　derived　and　the　equivalent　parameter　measurement　is　evaluated.　Two　solutions　to　realize　secondary　windings　with　one　turn　can　obtain　the　lowest　winding　length　and　eliminate　the　leakage　flux　effect.　The　prototype　was　built　to　validate　the　feasibility.　Finally,　the　development　mechanism　and　features　among　different　integrated　magnetics　were　summarized.　©　2011　Chin.　Soc.　for　Elec.　Eng.