1771-LI
磁性元器件的损耗
变压器损耗也是模块开关电源损耗的重要部分,变压器损耗主要有铁损和铜损。铁损是指由由变压器的材料、形状、工艺结构等有关因素而引起的高频损耗,铜损是指由变压器绕组线路而引起的传导损耗,为了减小变压器的铁损,应选择高频特性好、高频损耗小、磁芯结构形状合理、结构紧凑的磁芯材料。
同时为了减小模块开关电源的体积,应尽力提高模块开关电源的开关工作频率,如要提高到500kHz左右或更高,普通磁芯材料的损耗很大,磁芯很容易过热而磁饱和,以至无法正常工作,所以在模块开关电源中必须选用磁特性优良的高频磁芯材料。
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厦门欧控电气有限公司
Xiamen okong Electric Co., Ltd.
地 址:中国厦门自贸区银盛大厦12楼K单元
联系人:王先生
T:0592-5680797
P:18965816749
F:0592-5680772
Q:2631217786
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Allen Bradley 1771-OAN
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