变压器计算及磁芯对照表.xls

变压器计算及磁芯对照表.xls

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反反激激式式变变压压器器计计算算表表根据设计要求填入蓝色的参数，即可自动计算出红色格子的参数一一、输输入入电电压压范范围围输入最低电压AC9090V最低输入DCmin108.0V输入最高电压AC265265V最高输入DCmax371.0V按桥式整流、电容滤波为交流有效值的1.2-1.4倍计算出最大/小直流电压主路输出55V主路负载电流1.01.0A辅路输出100V辅路电流10.00.0A辅路输出200V辅路电流20.00.0A辅助绕组1616V辅助绕组电流0.000.00A输出负电压的这里不要输入负号输出功率Po5.0W二二、效效率率、频频率率、占占空空比比预估效率0.850.85输入功率Pi5.90W开关频率f6565kHz开关周期Ts15.0uS预估最大占空比D0.450.45开关导通时间Ton6.75uS三三、选选择择磁磁芯芯截面积Ae17.117.1cm2饱和磁通Bsat0.2600.260T交变磁通范围1.001.00Bac0.260T四四、原原边边匝匝数数原边匝数：

Np=DCmin*tON/（Bac*Ae）163.97163五五、副副边边匝匝数数输出整流损耗0.70.7V根据输出整流形式，估算二级管、电感、副边线圈上的压降副边电压V25.7V副边匝数：

Ns=V2/DCmin*Np8.609六六、占占空空比比校校正正、辅辅助助绕绕组组原边伏匝值0.66伏/匝副边伏匝值0.63伏/匝实际最大占空比Dm0.489实际的Ton7.33uS辅路1损耗0.00.0V辅路匝数10.000辅路2损耗0.00.0V辅路匝数20.000辅助绕组损耗0.70.7V辅助绕组匝数26.3726匝数取整法如果不符合要求,可以删除公式后手工输入取整值四舍五入取整七七、原原边边电电流流脉动系数Krp1.001.00=1此系数取1则为DCM模式平均值Iave=Pi/V1min0.055A峰值Ip=Iave/（1-0.5*Krp）*Dm0.224A有效值Irms=Ip*Dm*（Krp/3-Krp+1）0.090A交流分量Iac=Ip*Krp0.224A直流分量Idc=Ip*（1-Krp）0.000A八八、原原边边电电感感、气气隙隙大大小小原边电原量Lp=V1min*tON/Iac3.541mH电感系数AL1.3326E-07H/匝2据磁芯特性曲线查出气隙计算法确定气隙大小lg=4*10*Ae/AL0.161mm九九、磁磁饱饱和和验验证证交变分量Bac=V1min*tON/（Np*Ae）0.284T直流分量Bdc=4*10*Np*Idc/lg0.000T最大磁感应强度Bm=Bac/2+Bdc0.142T检查是否超过所选磁芯饱和磁通十十、线线径径电流密度450.0450.0A/cm2原边线截面积0.020mm2原边线径0.16mm副边峰值电流4.05A副边电流有效值1.98A副边线截面积0.440mm2副边线径0.75mm查线规表，选择满足条件的线号，考虑集肤效应,较粗的线取多股并绕-7-4CORECORE參參數數對對照照表表TYPETYPEMATERIALMATERIALDimensionsDimensions（mm）（mm）ApApAeAeAwAwAALLLeLeAA*BB*CC（cmcm44）（mmmm22）（mmmm22）（nH/NnH/N22）（mmmm）TYPETYPEECECCORECOREEC353C8535.3*17.3*9.51.374184.30163.002100.0077.40EC413C8541.6*19.5*11.62.5894121.00214.002700.0089.30EC523C8552.2*24.2*13.45.5980180.00311.003600.00105.00EC703C8571.7*34.5*16.417.8281279.00639.003900.00144.00TYPETYPEEEEECORECOREEE05PC405.25*2.65*1.950.00132.635.00285.0012.60EE6.3PC406.1*2.85*7.950.00153.314.46405.0012.20EE8PC408.3*4.0*3.60.00917.0013.05590.0019.47EE10/11PC4010.2*5.5*4.750.028712.1023.70850.0026.60EE13PC4013.0*6.0*6.150.057017.1033.351130.0030.20EE16PC4016*7.2*4.80.076519.2039.851140.0035.00EE19PC4019.1*7.95*5.00.124323.0054.041250.0039.40EE19/16PC4019.29*8.1*4.750.119122.4053.151350.0039.10EE20/20/5PC4020.15*10*5.10.157231.0050.701460.0043.00EE22PC4022*9.35*5.750.159041.0038.792180.0039.40EE2329SPC4023*14.7*60.436835.80122.001250.0064.90EE25/19PC4025.4*9.46*6.290.312840.0078.202000.0048.70EE25.4PC4025.4*9.66*6.350.317340.3078.732000.0048.70EE2825PC4028*12.75*10.60.852586.9098.103300.0057.70EE30PC4030*13.15*10.70.7995109.0073.354690.0057.70EE30/30/7PC4030.1*15*7.050.745559.70124.872100.0066.90EE3528PC4034.6*14.3*9.31.339884.80158.002600.0069.70EE40PC4040*17*10.72.2000127.00173.234150.0077.00EE4133PC4041.5*17*12.72.8260157.00180.004200.0079.00EE42/21/15PC4042*21.2*154.9484178.00278.003800.0097.90EE42/21/20PC4042*21.2*206.4625235.00275.005000.0097.80EE47/39PC4047.12*19.63*15.624.7529242.00196.406660.0090.60EE50PC4050*21.3*14.65.7343226.00253.736110.0095.80EE55/55/21PC4055.15*27.5*20.713.6764354.00386.347100.00123.00EE57/47PC4056.57*23.6*18.89.7132344.00282.368530.00102.00EE60PC4060*22.3*15.69.8558247.00399.025670.00110.00EE50.3PC4050.3*25.6*6.11.8447120.85152.642900.00104.90EE62.3/62/6PC4062.3*31*6.13.0330153.01198.223100.00125.74EE65/32/27PC4065.15*32.5*2730.7625535.00575.008000.00147.00TYPETYPEEFEFCORECOREEF12.6PC4012.7*6.4*3.60.031113.0023.90810.0029.60EF16PC4016.1*8.05*4.50.080020.1039.821100.0037.60EF20PC4020*9.9*5.650.101333.5030.241570.0044.90EF25PC4025.05*12.55*7.20.237651.8045.872000.0057.80EF32PC4032.1*16.1*9.150.651583.2078.302590.0074.30TYPETYPEEFDEFDCORECOREEFD103F310.5*5.2*2.70.00847.2011.60500.0023.70EFD123F312.5*6.2*3.50.018711.4016.38700.0028.50EFD153F315*7.5*4.650.047015.0031.35780.0034.00EFD203C8520*10*6.650.155031.0050.001300.0047.00EFD253C9025*12.5*9.10.393858.0067.892200.0057.00EFD303C9030*15*9.10.602869.0087.362100.0068.00TYPETYPEEIEICORECOREEI12.5PC4012.4*7.4*4.850.023514.4016.321200.0021.30EI16PC4016.0*12.2*4.80.083919.8042.371100.0034.60EI19PC4020*13.55*5.00.130524.0054.361400.0039.60EI22PC4022.0*14.55*5.750.160642.0038.242400.0039.30EI25PC4025.3*15.55*6.750.316541.0077.192140.0047.00EI22/19/6PC4022.0*14.7*5.750.198037.0053.502000.0041.80EI28PC4028.0*16.75*10.60.600586.0069.834300.0048.20EI30PC4020.0*21.25*10.70.8207111.0073.944690.0058.00EI33/29/13PC4033.0*23.75*12.71.5854118.50133.794400.0067.50EI35PC4035.0*24.25*10.01.3343101.40131.593800.0067.10EI3530PC4035.0*24.2*121.6592122.00136.003950.0068.00EI40PC4040.0*27.25*11.652.3301148.00157.444860.0077.00EI50PC4050.0*33.35*14.65.5218230.00240.086110.0094.00EI60PC4060.0*35.85*15.69.8024247.00396.865670.00109.00EI70PC4070.0*54.0*31.637.7618698.00541.0010500.00145.00TYPETYPEEPEPCORECOREEP73C859.4*3.75*6.50.010210.709.501120.0015.50EP103C8511.5*5.1*7.60.025511.3022.571025.0019.30EP133C8512.8*6.5*9.00.045619.5023.401475.0024.20EP173C8518.0*8.4*11.00.121033.7035.902230.0029.50EP203C8524*10.7*150.499778.7063.503950.0041.10TYPETYPEEPCEPCCORECOREEPC10PC4410.2*4.05*3.40.00729.397.691000.0017.80EPC13PC4413.3*6.6*4.60.028812.5023.00870.0030.60EPC17PC4417.6*8.55*60.042622.8018.701150.0040.20EPC19PC4419