单端反激开关电源变压器设计 乞力马扎罗的雪.pdf

1 Vin Vout P f (T)V out s mos 2 Vf (150V) Vf=VMos-VinDCMax-150V N /N =V /V p s f out V •••D =V •(1-D ) inDCMin Max f Max Ip1 Ip2 Ip1 0 1/2•(Ip1+Ip2) •DMax •VinDCMin=Pout/ Ip2=3Ip1 L = D •V /f •I p Max inDCMin s p I =I -I =2I I =I p p2 p1 p1 p p2 A A w e 2 4 1.14 A A =(L •I •10 /B •K •K ) w e p p2 w 0 j Aw cm2 2 Ae cm Lp H Ip2 A Bw T K0 0.2~0.4 2 Kj 395A/cm A A w e 4 N =L •I •10 /B •A p p p2 w e 2 -8 l =0.4 •N •A •10 /L g p e p lg cm Np 2 Ae cm Lp H