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串联或并联绕组电感寄生电容的对比研究

A Comparative Study on Parasitic Capacitance in Inductors With Series or Parallel Windings

语言:

中文摘要

在高功率中压应用中,电感器常采用多绕组设计以满足高电感和高电流需求。绕组的串联或并联连接方式会显著影响寄生电容,进而影响高频下的电磁干扰(EMI)和效率。本文对比分析了不同连接方式下的寄生电容特性,为高频功率变换器的磁性元件设计提供优化指导。

English Abstract

In high-power medium-voltage applications, inductors usually have multiple windings on a single core, due to the high inductance value and high current stress. The multiple coils are electronically connected in either series or parallel, with considerations of windings loss and cost. However, the differences in parasitic capacitance of inductors using parallel and series connections are not discus...
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SunView 深度解读

该研究直接关联阳光电源的核心磁性元件设计。在PowerTitan储能系统及大功率组串式逆变器中,电感器的寄生参数是决定高频化效率和EMI性能的关键。通过优化绕组连接方式,可有效降低寄生电容,减少高频振荡,从而提升逆变器及PCS的功率密度与可靠性。建议研发团队在设计大功率磁性元件时,参考该对比研究,在满足损耗和成本要求的同时,通过调整绕组排布抑制寄生电容,以优化整机电磁兼容性。