半桥变压器制作举例表格文件下载.xls
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半桥变压器制作举例表格文件下载.xls
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半桥变压器主要参数的计算指标:
@#@输入:
@#@230Vac(198Vac264Vac)输出:
@#@电压13.5V,电流25A现在决定用EC40的变压器,温升最好能在100以内,电路结构是半桥(无PFC电路),频率:
@#@75K1:
@#@根据功率选择磁芯EC402:
@#@计算变压器一次匝数Np=203:
@#@计算变压器一次线径p=?
@#@4:
@#@计算变压器二次匝数Ns=25:
@#@计算变压器二次线径s=?
@#@提供EC40(PC40磁材料)变压器的1、输输入入输输出出条条件件参参数数变变量量Vin(min)Vin(min)最最小小输输入入ACAC电电压压198198VminVmin最最小小的的DCDC电电压压279.972Vo1(Vo1(输输出出电电压压)13.513.5Vd(Vd=1V(Vd(Vd=1V(输输出出二二极极管管上上的的压压降降)0.7Vo1maxVo1max输输出出最最大大电电压压14.2Io1Io1输输出出电电流流25Io1maxIo1max输输出出最最大大电电流流27.5Vo2(Vo2(输输出出电电压压)00Vd(Vd=1V(Vd(Vd=1V(输输出出二二极极管管上上的的压压降降)0Vo2maxVo2max输输出出最最大大电电压压0Io2Io2输输出出电电流流0Io2maxIo2max输输出出最最大大电电流流0-效效率率0.9PiPi输输入入总总最最大大功功率率433.8888889433.8888889PoPo总总输输出出最最大大功功率率390.5VpVp139.986FswFsw800002、确确定定磁磁心心尺尺寸寸Kf(Kf(波波形形系系数数,方方波波时时取取4)4)4变变压压器器容容量量APAP0.9921239840.992123984Ae*Aw的值(必须大于AP值)2.01282.0128AeAe148148AwAw1361363、确确定定匝匝数数剩剩余余磁磁通通密密度度BrBr60饱饱和和磁磁通通密密度度BsBs410BmBm0.136666667Np(Np(初初级级匝匝数数)21.621.6Ns1&@#@Ns2(Ns1&@#@Ns2(次次级级匝匝数数)2.22.2特定条件:
@#@Ku-Ku-绕绕组组系系数数0.4JJ电电流流密密度度5005、计计算算线线径径初初级级最最大大电电流流IprmsIprms1.551.55初初级级线线截截面面积积SpSp0.310.31初初级级线线直直径径取取整整pp1.2多多组组线线并并绕绕取取整整n*pn*p6*0.5次次级级最最大大电电流流IomaxIomax27.527.5次次级级线线截截面面积积SsSs5.55.5次次级级线线直直径径取取整整ss1.6多多组组线线并并绕绕取取整整n*sn*s10*0.5-表表示示必必填填参参数数-表表示示算算好好的的数数值值-表表示示手手动动取取值值单位备备注注VAC230V10%取最小值VVVVAAVVVAA半桥变压器主要参数的计算WWVHzcm4AP=(Pt*10000)/(2*Bm*Fsw*J*Ku)AW*Ae所选磁心容量要大于估算容量.此例取EC40Ap=2.5894cm4mm2mm2mTmTPC40磁材料Bs=390mT,Br=60mT,不同磁材料,不同磁通密度)T基数(Bs/3或除以2都可以,但是这样子,算出匝数偏多,就是说铜损大了.Bw决定初级匝数.除3系经验值)1T=1000mTTsNp=Vp/Kf*Fsw*Ae*BmTsVp/Np=(Vo+Vd)/Ns繞組系數0.20.5A/cm2J電流密度A/cm2(300500)AIprms=2*Po/VIN(min)mm2Awp=Iprms/J(J電流密度A/cm2(300500)mm查漆包线附录接近取值可得mm经计算可选Amm2Awp=Iomax/J(J電流密度A/cm2(300500)mm查漆包线附录接近取值可得mm经计算可选CORECORE參參數數對對照照表表TYPETYPEMATERIALMATERIALDimensionsDimensions(mm)(mm)ApApAeAeAwAwAALLAA*BB*CC(cmcm44)(mmmm22)(mmmm22)(nH/NnH/N22)TYPETYPEECECCORECOREEC353C8535.3*17.3*9.51.374184.30163.002100.00EC413C8541.6*19.5*11.62.5894121.00214.002700.00EC523C8552.2*24.2*13.45.5980180.00311.003600.00EC703C8571.7*34.5*16.417.8281279.00639.003900.00TYPETYPEEEEECORECOREEE05PC405.25*2.65*1.950.00132.635.00285.00EE6.3PC406.1*2.85*7.950.00153.314.46405.00EE8PC408.3*4.0*3.60.00917.0013.05590.00EE10/11PC4010.2*5.5*4.750.028712.1023.70850.00EE13PC4013.0*6.0*6.150.057017.1033.351130.00EE16PC4016*7.2*4.80.076519.2039.851140.00EE19PC4019.1*7.95*5.00.124323.0054.041250.00EE19/16PC4019.29*8.1*4.750.119122.4053.151350.00EE20/20/5PC4020.15*10*5.10.157231.0050.701460.00EE22PC4022*9.35*5.750.159041.0038.792180.00EE2329SPC4023*14.7*60.436835.80122.001250.00EE25/19PC4025.4*9.46*6.290.312840.0078.202000.00EE25.4PC4025.4*9.66*6.350.317340.3078.732000.00EE2825PC4028*12.75*10.60.852586.9098.103300.00EE30PC4030*13.15*10.70.7995109.0073.354690.00EE30/30/7PC4030.1*15*7.050.745559.70124.872100.00EE3528PC4034.6*14.3*9.31.339884.80158.002600.00EE40PC4040*17*10.72.2000127.00173.234150.00EE4133PC4041.5*17*12.72.8260157.00180.004200.00EE42/21/15PC4042*21.2*154.9484178.00278.003800.00EE42/21/20PC4042*21.2*206.4625235.00275.005000.00EE47/39PC4047.12*19.63*15.624.7529242.00196.406660.00EE50PC4050*21.3*14.65.7343226.00253.736110.00EE55/55/21PC4055.15*27.5*20.713.6764354.00386.347100.00EE57/47PC4056.57*23.6*18.89.7132344.00282.368530.00EE60PC4060*22.3*15.69.8558247.00399.025670.00EE50.3PC4050.3*25.6*6.11.8447120.85152.642900.00EE62.3/62/6PC4062.3*31*6.13.0330153.01198.223100.00EE65/32/27PC4065.15*32.5*2730.7625535.00575.008000.00TYPETYPEEFEFCORECOREEF12.6PC4012.7*6.4*3.60.031113.0023.90810.00EF16PC4016.1*8.05*4.50.080020.1039.821100.00EF20PC4020*9.9*5.650.101333.5030.241570.00EF25PC4025.05*12.55*7.20.237651.8045.872000.00EF32PC4032.1*16.1*9.150.651583.2078.302590.00TYPETYPEEFDEFDCORECOREEFD103F310.5*5.2*2.70.00847.2011.60500.00EFD123F312.5*6.2*3.50.018711.4016.38700.00EFD153F315*7.5*4.650.047015.0031.35780.00EFD203C8520*10*6.650.155031.0050.001300.00EFD253C9025*12.5*9.10.393858.0067.892200.00EFD303C9030*15*9.10.602869.0087.362100.00TYPETYPEEIEICORECOREEI12.5PC4012.4*7.4*4.850.023514.4016.321200.00EI16PC4016.0*12.2*4.80.083919.8042.371100.00EI19PC4020*13.55*5.00.130524.0054.361400.00EI22PC4022.0*14.55*5.750.160642.0038.242400.00EI25PC4025.3*15.55*6.750.316541.0077.192140.00EI22/19/6PC4022.0*14.7*5.750.198037.0053.502000.00EI28PC4028.0*16.75*10.60.600586.0069.834300.00EI30PC4020.0*21.25*10.70.8207111.0073.944690.00EI33/29/13PC4033.0*23.75*12.71.5854118.50133.794400.00EI35PC4035.0*24.25*10.01.3343101.40131.593800.00EI3530PC4035.0*24.2*121.6592122.00136.003950.00EI40PC4040.0*27.25*11.652.3301148.00157.444860.00EI50PC4050.0*33.35*14.65.5218230.00240.086110.00EI60PC4060.0*35.85*15.69.8024247.00396.865670.00EI70PC4070.0*54.0*31.637.7618698.00541.0010500.00TYPETYPEEPEPCORECOREEP73C859.4*3.75*6.50.010210.709.501120.00EP103C8511.5*5.1*7.60.025511.3022.571025.00EP133C8512.8*6.5*9.00.045619.5023.401475.00EP173C8518.0*8.4*11.00.121033.7035.902230.00EP203C8524*10.7*150.499778.7063.503950.00TYPETYPEEPCEPCCORECOREEPC10PC4410.2*4.05*3.40.00729.397.691000.00EPC13PC4413.3*6.6*4.60.028812.5023.00870.00EPC17PC4417.6*8.55*60.042622.8018.701150.00EPC19PC4419.1*9.75*60.123522.7054.409
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