This　article　puts　forward　a　brand-new　high-boost　DC-DC　converter.　The　converter　adopts　a　Boost　structure　on　the　input　side,　inheriting　the　advantages　of　continuous　input　current,　making　it　besuitable　for　renewable　energy　applications.　The　rear　stage　of　the　converter　integrates　the　three-winding　coupled　inductor　and　the　voltage　double　unit.　As　a　result,　a　high　voltage　gain　can　be　achieved　by　using　a　coupled　inductor　with　a　relatively　small　total　turn　ratio,　and　the　degree　of　freedom　in　adjusting　the　voltage　gain　is　also　improved.　The　low　switch　voltage　stress　allows　the　use　of　low　voltage　rating　devices.　Additionally,　the　clamping　circuit　reutilizes　the　energy　stored　in　the　leakage　inductance　of　the　coupled　inductor,　thereby　enhancing　the　efficiency.　The　article　discusses　the　operating　modes　of　the　converter　in　detail　and　compares　its　performance　with　other　converters.　Finally,　an　experimental　prototype　is　built　for　verification,　and　the　experimental　results　match　the　theoretical　analysis.　©　2025　Science　Press.　All　rights　reserved.