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TDK铁氧体ELP64/10/50系列磁芯B66295GX195
铁氧体磁芯与配件 ELP64/10/50 N95 15500 +25% -25%
制造商:TDK
产品种类:铁氧体磁芯 高频磁环 高频导磁环 锰锌铁氧体磁芯 纳米晶软磁芯 非晶合金磁芯 镍锌铁氧体 铁镍钼磁粉芯 铁硅铝磁粉芯
系列:ELP64/10/50
产品:Ferrite Cores
类型:Ungapped
核心:ELP Core
芯体大小:64 x 10 x 50
芯体材料:N95
封装:Bulk
商标:EPCOS / TDK
产品类型:Ferrite Cores & Accessories
工厂包装数量：60
子类别:Ferrites
零件号别名:B66295GX195
单位重量:210 g
一，常用软磁元器件之变压器的介绍
所谓变压器，就是利用电磁感应实现交流电压变换的器件。变压器的原理已经在“电磁感应”中说明。因为变压器的铁芯处于不断变化的电磁场中，铁芯材料的磁化强度和磁感应强度也是不断改变的。这就自然要求铁芯材料对这种变化的阻力小，变化足够灵敏。所以，几乎对所有的变压器铁芯，都要求导磁率高。同时，交变的电磁场必然会在铁芯中产生能量损耗（例如涡流），所有还要求材料的铁损低，以降低铁芯的温升，提高变压器效率。
二，变压器的形式和品种繁多。在不同的场合，变压器的工作方式大不相同，所以对变压器铁芯的具体要求也存在很大差别。
1，低频变压器：工作频率较低（例如低于1KHz）一般地，工作点较低时电流和电压都是正弦波。由于频率低，铁芯损耗不大，所以铁芯的工作磁感可以设计得比较高。因此这时需要高饱和磁感的软磁材料作铁芯，例如硅钢。硅钢片作为配电变压器铁芯时，工作磁感可以达到1.4T以上。铁基非晶合金作为变压器铁芯时，工作点可以达到1.3T。为了提高变压器效率，要求铁芯材料的铁损低，同时要求材料导磁率高，以减小初级线圈的激磁电流，降低因线圈电阻带来的损耗（称为铜损）。
2，高频变压器：随着技术的进步，高频电源已经大量应用。之所以发展高频电源，是因为传统的工频电源效率不高。从电磁感应原理不难推出，变压器铁芯所能够传输的功率与磁通变化的频率成正比。因此，如果提高变压器的工作频率，那么变压器铁芯的体积便可以大幅度缩小，重量减轻，并且提高电源的效率，降低各种损耗。所以，自从七十年代以来，高频电源的发展非常迅猛。但另一方面，工作频率的提高会导致变压器铁芯铁损的急剧增大。要解决这个问题，一是降低铁芯的工作磁感，二是采用更好的软磁材料。通常，高频变压器铁芯不能再使用硅钢片，而是要用损耗更小的铁镍合金（坡莫合金）、 铁氧体或者非晶合金。
北京友盛兴业科技有限公司代理供应TDK铁氧体磁芯,欢迎来电咨询
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