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慢开关极限下包含电荷再利用的开关电容DC-DC变换器动态模型

Dynamic Model of Switched-Capacitor DC–DC Converters in the Slow-Switching Limit Including Charge Reusing

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中文摘要

本文提出了一种在慢开关极限下分析两相开关电容DC-DC变换器动态行为的可靠模型,该模型综合考虑了顶部和底部寄生电容以及电荷再利用技术。该方法在增益和效率方面较现有方案有显著提升。

English Abstract

A reliable model to analyze the dynamic behavior of two-phase switched-capacitor dc-dc converters in the slow-switching limit regime is proposed, taking into account both top and bottom parasitic capacitances as well as the charge reusing approach. This technique features significant improvements in both gain and efficiency with respect to existing solutions. We calculate the slow-switching limit ...
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SunView 深度解读

开关电容(SC)变换器在提升功率密度和集成度方面具有显著优势,该研究提出的动态模型及电荷再利用技术对阳光电源的产品研发具有重要参考价值。在户用光伏优化器、微型逆变器以及电动汽车充电桩的辅助电源模块中,应用该模型可有效降低寄生参数影响,提升转换效率。此外,在储能系统(如PowerStack)的电池均衡电路或低压DC-DC变换环节中,该技术有助于优化电路拓扑设计,进一步减小体积并提升系统整体能效,符合公司追求高功率密度与高可靠性的产品发展方向。