L6562单端PFC反激变压器设计TM模式

输入值计算输出设定值minnormalmax120120150PoutW130Pin（W）152.941η85%VoutV83Iout（A）1.566LpH1.15E-04n1.30θ°90sinθ1VRV107.9minnormalmax120120150VPKV169.706169.706212.132Kv1.5731.5731.966F1(Kv)0.3000.3000.266F2(Kv)0.2200.2200.193F3(Kv)0.1800.1800.158IPKpA8.1908.1907.464Irms-pA2.2182.2181.894IPKsA9.0509.0508.247Irms-sA2.7832.7832.652FswHz70,03770,03783,327Fsw-minHz70,03770,03783,327Tons5.55E-065.55E-064.05E-06Don38.87%38.87%33.72%VinVinVacVac计算公式VR=n*VoutDon=Ton*fsw-minDesignequationsofhigh-power-factorflybackconvertersbasedontheL6561输入参数Vin-min169.70563VVin-max212.13203Vf-in50HzVin-drop0Vη85%Bmax3200Gaussf7.00E+04HzJ6A/mm^2Don-max38.87%Kw0.21stoutput2ndoutput3rdoutput4thoutput5thoutput……Pout(W)130Vout(V)83VF(V)0.7N'1.3Doff-min0.6113191Pin152.94118W令Lp1.15E-04HIp-rms2.2181993AIp-rms=sqrt(Don*((Ip-ave/Don)^2+(△Ip)^2/12))Ip-peak8.1896285AIp-peak=Ip-ave/Don+0.5*△Ip副边电流1stoutputIs-rms2.7827841Is-peak9.0495395Ae*Aw1.06905cm^4CoreETD34Bobbin磁路有效面积Ae0.971cm^2Aw（窗口面积）111.36mm^2磁心有效长度le78.6mmlw（平均每匝长度）52.2mmVe（磁心体积）7630mm^3Al（inductancewith1turnandwithoutairgap)2780nH/N^2Loss2.3W@100kHz,200mT,100℃Ae*Aw1.0813056cm^4N=(Vin-Vd)*Don/((Vout+VF)*(1-Don))计算过程原边电流Is-rms=sqrt(Doff*((Is-ave/Doff)^2+(△Is)^2/12))Is-peak=Is-ave/(1-Don)+0.5*△Is设定变压器工作电感值Doff-min=1-Don-maxPin=Pout-total/η磁心选择Ae*Aw=Lp*Ip-peak*(Ip-rms+Is-rms/N)/(Kw*Bmax*J)*10^6所选的Core与Bobbinδ0.2497686mmδ=6.61/sqrt(f)*10要求所选线径2*δ原边导线0.25mm副边导线0.3mm导线面积Ap-wire0.0490625mm^2导线面积As-wire########mm^2ρ，电阻率0.0283Ω*mm^2/m75度时电阻的电阻率Rw，导线电阻0.5768153ohm/m########ohm/m结果匝数，turns取整Np'30.310481→30Np=Lp*Ip-peak/(Bmax*Ae)*10^8Ns1'23.315755→23Ns=Np/NN########N=Np/NsDon-max0.3894745Don-max=N*Vout/(Vin-min+N*Vout)Don-min0.3379003Don-min=N*Vout/(Vin-max+N*Vout)Vd-max,diode'sreversevoltage245.63456VVd-max=Vin-max/N+VoutVds-max,MOS'sVds320.3929VVds-max=Vin-max+Vout*NGp7.5352842→9Gp=Ip-rms/(J*Ap-wire)Gs16.5647184→8Gs=Is-rms/(J*As-wire)Kw,窗口利用率0.2356903股数，strandsKw=(Gp*Tp*Ap-wire+Gs*Ts*As-wire)/Aw??可能会绕不下线径导线选择Total130CCM以此为准计算过程原边电流Is-rms=sqrt(Doff*((Is-ave/Doff)^2+(△Is)^2/12))设定变压器工作电感值磁心选择Ae*Aw=Lp*Ip-peak*(Ip-rms+Is-rms/N)/(Kw*Bmax*J)*10^6所选的Core与BobbinNp=Lp*Ip-peak/(Bmax*Ae)*10^8股数，strands??可能会绕不下线径导线选择