A multiphase dc‐dc converter is effective for miniaturization and achieving high‐power density in a switching power supply. However, its mathematical modeling becomes complex as the phase number of the circuit increases. This study proposes a new modeling method to derive a reduced‐order method in a simple manner. The frequency characteristics of the reduced‐order model are fit to those of the original mathematical model of the multiphase dc‐dc converter. Therefore, the efficacy of the proposed method is validated.

中文翻译：

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多相DC-DC转换器的数学建模的降阶方法

多相DC-DC转换器可有效地实现开关电源的小型化并实现高功率密度。但是，随着电路相数的增加，其数学模型变得复杂。这项研究提出了一种新的建模方法，以一种简单的方式来推导降阶方法。降阶模型的频率特性与多相DC-DC转换器的原始数学模型相符。因此，该方法的有效性得到了验证。