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晨飞资讯</a> » <a href="/Article/gaopinbianyaqizhongd_1.html">高频变压器中的磁芯矫顽力?则会使得铁耗也?/a></div>
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高频变压器中的磁芯矫顽力?则会使得铁耗也?/h3>
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<p> <strong>高频变压?/strong>中的磁芯矫顽力低，磁滞面积小，则铁耗也少。高的电阻率，则涡流小，铁耗小。铁氧体材料是复合氧化物烧结体，电阻率很高，适合高频下使用，但Bs值比较小，常使用在开关电源中?/p>
<p> 高频变压器的设计通常采用两种方法：第一种是先求出磁芯窗口面积AW与磁芯有效截面积Ae的乘积AP（AP=AW×Ae，称磁芯面积乘积），根据AP值，查表找出所需磁性材料之编号；第二种是先求出几何参数，查表找出磁芯编号，再进行设计?/p>
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