安士能SN03D08-551/2-M 广西代理
假定5W50赫兹变压器的铁芯截面积是4平方厘米，那么这个变压器的电磁转换功率密度是5/4=1.25W/平方厘米，同样功率的一个高频电子开关电源，里面的高频变压器磁芯截面积只有0.5平方厘米，那么功率密度就是5/0.5=10W/平方厘米，功率密度提高到原来的8倍。
根据电磁波原理，频率越高能量密度越高。有效缩小变换器的尺寸及重量。
开关电源效率高一是因为变压器损耗小，二是因为开关管导通压降小，三是整流管压降小。
碳化硅器件不太了解，我对IGBT器件比较了解，升高开关器件的工作工作频率，降低导通压降是主要改进方向。
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安士能SN03D08-551/2-M 广西代理
