This　paper　presents　a　novel　high　input　and　output　voltage　unity　power　factor　rectifier,　which　operates　based　on　Boost　topology.　A　simple,　reliability　and　high　efficiency　series-connected　IGBTs　circuit　which　can　support　high　total　blocking　voltage　is　proposed.　Compared　with　the　existing　series-connected　IGBTs　methods,　this　circuit　can　efficiently　and　reliably　operate　using　single　driving　signal　without　big　capacitor　and　magnetic　component.　It　is　convenient　to　integrate　the　control　chip　with　auxiliary　circuit　and　possess　simple,　effective　voltage　sharing　and　high　reliability.　The　turn-on　and　turn-off　operation　principle　is　analyzed　in　detail.　Theoretical　analysis,　a　design　example,　and　experimental　results　of　a　500-W　converter　with　480-Vrms　input　voltage　and　800-VDC　output　voltage　are　presented.　©　VDE　VERLAG　GMBH　·　Berlin　·　Offenbach.