"Sheet1"
"变压器设计图纸"
"项目"
,,"电压(V)","电流(A)","功率(W)"
"输出电压",1,5,2,10
,2,16,1,16
,3,16,1,16
,4,25,0.5,12.5
,5,3,0.5,1.5
,6,,,0
,7,,,0
,8,,,0
,9,,,0
,"Vfb",12,0.05,0.6
,,"公式","数值","单位"
"输出总功率","Po",,60,"W"
"输入功率","Pi","Pi=Po/h",85.71428571,"W"
"效率","h","70~80%",0.7
"最大占空比","Dmax",,0.35
"最小输入电压","Vmin","mmin*√2-30",120,"V"
"工作频率"," ",,60,"KHz"
"导通时间","Ts","1000000/ ",16.66666667,"us"
"最大导通时间","Ton","Dmax*Ts",5.833333333,"us"
"磁芯有效面积","Ae",,105,"mm","型号"
"磁通密度","Bm","200~300mT",0.18,"mt"
"初级匝数","Np","Vmin*Ton/Bm*Ae",37.03703704,"修正值",40
"初级每伏匝数","Ns","Vmin/Np",3
"变压器参数",,,,,"线径","二极管"
"初级匝数","Np","Vmin*Ton/Bm*Ae",,"修正值"
"次级各匝数","N1","N1=(V1+VF)/Ns",1.9,2
,"N2","N2=(V2+VF)/Nd",5.859649123,7
,"N3","N3=(V3+VF)/Nd",5.859649123,7
,"N4","N4=(V4+VF)/Nd",9.01754386,9
,"N5","N5=(V5+VF)/Nd",1.298245614,1
,"N6","N6=(V6+VF)/Nd",0.245614035
,"N7","N7=(V7+VF)/Nd",0.245614035
,"N8","N8=(V8+VF)/Nd",0.245614035
,"N9","N9=(V9+VF)/Nd",0.245614035
,"NVFB","NVfb=(Vfb+VF)/Nd",4.456140351,6
"初级电感量","Lp","Lp=(Vmin*△T)/△I",119.6581197,200
"计算新的匝数比","Nd","Nd=(V1+VF)/N1",2.85
"计算△T",,"△T=(Ts*Nd)/(Nd+Ns)",8.11965812
"平均输入电流","Ip","Pi/Vmin",0.714285714
"计算IM","Im","Im=(Ip*Ts)/Ton",8.142857143
"计算IP1","Ip1","Ip1=Im/2",4.071428571
"计算IP2","Ip2","Ip2=3Ip1",12.21428571
"计算△I",,"△I=Ip2-Ip1",8.142857143
"初级电感量","Lp","Lp=(Vmin*△T)/△I",119.6581197
"计算磁芯电感系数","Al","Al=Lp/(Np*Np)",0.074786325
"磁芯气隙","Lg","Lg=(uo*Np*Np*Ae)/Lp","1.76432E-06"
"二极管最大反向电压","Vmax","Vo+(Nc/Np)*Uimax"
"Sheet2"
"Sheet3"
- 采区设计图纸 > 变压器设计图纸
-
变压器设计图纸
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