你知道电感的定义嘛?L=Φ/I,文中正是这样定义的(它的推导VL=Ldi/dt涉及法拉第电磁感应)
AP你看表达式,它定义的是磁芯横截面积和绕组面积乘积,是一个正比于电感体积的物理量,
具体可看英文定义:
An indexfor measuring the inductor size called Area Product is introduced, which is theproduct of effective cross-section area of the core and area of winding window. The unit becomes m4 rather than m3 in volume.However, the area product is directly proportionalto core volume.
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