This　paper　applied　the　voltage　control　mode　and　the　transformed　buck　circuit　into　the　intelligent　control　of　the　ac　contactor　and　realized　closed-loop　control.　On　this　basis,　a　self-correction　control　scheme　with　the　state　capture　circuit　of　main　contacts　has　been　proposed.　This　paper　analyzed　the　principle　of　the　self-correction　control　and　realized　it　by　current　scanning.　The　control　scheme　can　reduce　the　bounces　of　the　ac　contactor　in　making　process　with　the　offline　self-correction.　Through　memory　the　offline　self-correction　parameters,　the　control　module　can　recurrence　the　making　coil　current　accurately.　This　control　scheme　relies　less　on　the　structure　parameters　of　the　ac　contactor　and　is　not　sensitive　to　the　input　voltage　fluctuation.　The　intelligent　ac　contactor　can　adjust　the　attractive　force　automatically　and　enhance　the　electrical　life　of　the　ac　contactor.　The　complex　modeling　and　simulation　is　not　necessary　during　the　optimal　control.　The　experimental　results　verify　the　validity　of　the　control　scheme.　©2015　Chin.　Soc.　for　Elec.　Eng.