Conventional　isolated　single-input　multi-output　DC-DC　resonant　converters　needed　lengthy　and　complicated　secondary　feedback　control　design,　but　it　cannot　suitable　for　low-cost　and　high　accuracy　of　less　demanding　situations.　A　novel,　simple　and　good　dynamic　performance　resonant　converter　with　MPCOT　primary　feedback　control　is　proposed　in　this　paper.　The　feedback　signal　voltage　of　control　loop　from　primary　resonant　capacitor　with　the　characteristic　of　larger　voltage　ripple,　A　new　multi-pulse　constant　on　time　control　is　proposed　to　overcome　the　traditional　control　schemes　are　hardly　suitable　for　the　wicked　feedback　signal.　The　stability　and　performance　of　proposed　converter　are　verified　by　an　experimental　prototype.　©　2016　IEEE.