All　parties　favour　the　half-bridge　current-doubling　rectifier　circuit　due　to　its　advantages:　small　output　current　pulsation,　low　switching　voltage　stress,　and　high　anti-unbalance　ability.　Further　integration　of　the　secondary　inductor　and　the　transformer　further　reduces　the　size　of　the　converter　and　dramatically　improves　the　power　density.　This　paper　carefully　analyzes　the　existing　magnetic　integration　schemes.　Combined　with　the　characteristics　of　low-voltage　and　high-current　DC　converters,　the　secondary　winding　in　this　paper　adopts　the　form　of　one　turn　to　further　reduce　the　loss　so　as　to　adapt　to　the　secondary　output　of　high　current.　The　way　the　integrated　magnetics　are　matrixed.　The　secondary　side　has　a　higher　DC　flux　offset,　and　the　magnetic　core　material　adopts　a　magnetic　powder　core　with　high　saturation　magnetic　density,　which　is　equivalent　to　a　distributed　air　gap,　which　significantly　reduces　the　additional　winding　loss　caused　by　the　air　gap　diffusion　magnetic　flux　cutting　the　winding.　The　winding　loss,　termination　loss,　core　loss,　and　distribution　parameters　of　single　and　matrix　integrated　magnetic　components　were　compared　and　analyzed.　Focus　on　optimization　analysis.　At　the　same　time,　it　focuses　on　the　influence　of　matrix　on　the　DC　bias　and　DC　loss　of　the　current-doubling　rectifier　core.　At　the　same　time,　the　leakage　inductance　and　winding　loss　of　the　integrated　magnetic　components　are　comprehensively　considered,　and　a　compromise　design　is　carried　out　further　to　improve　the　power　density　of　the　integrated　magnetic　components.　©　2022　The　authors　and　IOS　Press.