L6562做单端反激变压器计算表格软件

L6562TransformerCalculateTools1.DesignSpecificationsVinmin=85VACVinmax=265VACFl=50HzVo=24VDCIo=0.8AVaux=16VΔvop-p=1V2.Pre-designChoicesFsmin=50KHzVor=100Vη=85%3.PreliminaryCaculationsVpkmin=Vinmin×1.414=120.19VVpkmax=Vinmax×1.414=374.71VPo=Vo×Io=19.2WPin=Po/η=22.58824WKv=Vpkmin/Vor=1.2019F1(Kv)=(0.637+0.0046×Kv)/(1+0.729×Kv)=0.3424655F2(Kv)=(0.5+0.0014×Kv)/(1+0.815×Kv)=0.2534329F3(Kv)=(0.424+0.00057×Kv)/(1+0.862×Kv)=0.2085841F5(Kv)=(0.5+0.0014×Kv)/(1+0.815×Kv)=0.54.OperatingConditionsIpkp=2Pin/(Vpkmin×F2(Kv))=1.483136AIrmsp=Ipkp×sqrt(F2(Kv)/3)0.431074AIpks=2Io/(Kv×F2(Kv))=5.252774AIrmss=Ipks×sqrt(Kv×F3(Kv)/3)1.518458A5.TransformerLp=Vpkmin/((1+Kv)×Fsmin×Ipkp)=736.071uHLpreal=730uHn=Vor/(Vo+Vf)=4.065041(a.)ChooseTransformerCoreAe=54mm2ΔB=0.24Gs(b.)TransformerCaculations84.23561TNpreal=77TNs=Npreal/n=18.942TNsreal=19TNaux=(Vaux+0.6)×Nsreal/(Vo+0.6)=12.82114TNauxreal=13TLg=0.4×π×Npreal2×Ae/Lpreal=0.550861mmDiameterTurnsPremary0.33140274577Secondary0.62198739619Aux0.213Np=Lp×Ipkp/(Ae×ΔB)=