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功率器件热设计基础(七)——热等效模型
这些层依次加热,热流达到散热器,因此散热器温度上升需要一定时间。Cauer模型可以通过仿真或从通过测量获得的局部网络模型Foster模型转换过来。 图六:将连续网络模型合并为一个系统模型 通常的做法是通过对整个装置的各个层进行材料分析和有限元仿真来 ...
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