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1、功率铁氧体磁芯ElEEEEPQECEI60EE80EE35PQ50/50EC90EI50EE72EE30PQ40/40EC70EI40EE70EE25PQ35/35EC52EI35EE60EE19PQ32/30ECI70EI33EE55EE16PQ32/20EER49/54EI30EE50EE13PQ26/25EER49/43EI28EE49EE10PQ26/20EER49/38EI25EE42一PQ20/20EER42/43EI22EE42/20一PQ20/16EER42/45EI19一一一EER40/45EI16一一UF102EER28L常用功率铁氧体材料牌号技术参数项目条件单位PC30P
2、C402500BB253C8N27卩i一一250023002500230020002000BmsH=1200A/mmT510510490510450510BrH=800A/mmT11795100130一一He一A/m1214.315.915.918.820Tc一C230215230220200220P200mT23CKW/m31306009560090048一25KHz60C100CKW/m390一70一一一一KW/m3100一75一一一一100mT60CKW/m3一450一450一一一100KHzl00CKW/m3一410一410一一公司一一TDKTDKTOKINTOKINFERROCXLU
3、BESIEMENSEI 型磁芯规格及参数型号ABCDEFHAe(c m2)Le(cm)Ve(cm3)ALnH/N2卩eEI1616一一512.2一20.1983.460.6711001575EI1920一一5.213.55一2.30.243.960.9514001825EI222212.66614.310.34.50.423.931.6324002255EI2525.3196.5715.312.22.70.414.71.92721401962EI282818.67.51116.512.03.50.864.824.14543001960EI303019111121165.51.115.806.4
4、447501984EI3333一一1323.5一9.71.1856.758.0044502030EI353524.5101024184.61.016.716.8039502100EI404026.8121227.25217.51.487.711.350002070EI50503415153324.592.39.421.663002070EI606044161636288.52.4710.927.160002126PQ型磁芯规格及参数型号ABCDEFIAe(c m)Le(cm)Ve(cm3)AL(nH/N2)卩ePQ 20/1620.58.214188.712.55.40.623.742.313
5、8801868PQ 20/2020.510.214188.712.57.40.624.542.7933101944PQ 26/2026.510.219231212.65.91.194.635.4961701920PQ 26/2526.512.51922.512.215.57.91.185.556.5352501972PQ 32/203210.42227.513.7195.61.705.559.4273101896PQ 32/303215.32227.513.71910.51.617.4611.9751401898PQ 35/353517.5263214.623.512.351.968.7917
6、.2648601733PQ 40/404120.0283715.227.514.62.0110.1920.4543001738PQ 50/505025.1324420.3531.517.93.2811.337.2467201850EE 型磁芯规格及参数型号ABCDEFAe(c m2)Le(cm)Ve(cm3)AL(nH/N2)卩eEE1010.282.44.755.51.30.122.610.31510061767EE1313102.76.1561.30.1713.020.51711001550EE16161245720.193.400.6512001728EE1919144.84.982.6
7、0.223.900.8613501880EE252515.66.66.59.53.30.404.901.9620001952EE30302011111351.095.806.3247502000EE3333一一13.713.8一1.157.558.7138402000EE3534.926.59.39.514.241.067.007.3937901990EE404028111116.56.51.487.7011.4042502040EE424229.612.215.2216.21.829.7017.6047002510EE5050351515218.52.269.6021.762502125EE
8、555637.617.221.027.593.5412.343.571001977EE606044.61616228.32.4711.027.260002135EE707146.622.2205411.14.4523.18103.048201990EE7272.353.51919209.53.5813.448.167001995EE8079.359.42019.837.59.53.8118.369.852001980EC、EER 型磁芯规格及参数型号ABCDEFE-EAe(cm2)Le(cm)ve(cm3)AL(nH/N2)卩eEC909171.23030459.691/906.2421.61
9、3.505550一EC707143.416.816.834.511.771/692.7914.440.148001963EIC70704416.216.229.86.870/392.79一一一一EC525332.113.7513.7524.28.753/491.810.518.842001942EER494937.416.916.9278.449/542.4611.829.0957001900EER49493716.916.921.56.549/432.5510.025.557001900EER494937.31717.2196.549/382.2919.7222.2655001860EER4
10、24232.517.319.521.35.942/432.409.8623.6457601900EER424231.315.115.522.45.742/451.82510.1818.5742001860EER404029.413.313.322.4740/451.52810.2415.6434501840EER282821.91011.4174.328/340.8147.556.14250019001, 磁芯向有效截面积：Ae2, 磁芯向有效磁路长度： le3, 相对幅值磁导率：w4, 饱和磁通密度： Bs1 磁芯：正弦波与矩形波比较一般情况下，磁芯损耗曲线是按正弦波+/-交流(AC)激励绘制的，在标准的和正常 的时候，是不提供极大值曲线的。涉及到开关电源电路设计的一个共同问题是正弦波 和矩形波激励的磁芯损耗的关系。对于高电阻率的如类似，正弦波和矩形波产生的损 耗几乎是相等的，但矩形波的损耗稍微小一些。材料中存在高的涡流损耗(如大型叠 片式或大型切割磁芯)时，矩形波损耗是正弦波损耗的1/22/3。D.Y.Chen提供的参 考资料解释了这种现象。一般情况下，具有矩形波的磁芯损耗比具有正弦波的磁芯损耗低一些。但在元件 存在铜损的情况下，这是不正确的。在变压器中，用矩形波激励时的铜损远远大于用 正弦波激励时的铜损。高频元件的损耗在铜损方面显得更多，集肤效应损耗比矩形波
