A 1.25GHz Fully Integrated DC-DC Converter Using Electromagnetically Coupled Class-D LC Oscillators

📋 论文概要

该论文提出了一种1.25GHz全集成DC-DC转换器，采用电磁耦合的Class-D LC振荡器实现高效电源管理。解决了传统Buck转换器需要片外电感和开关电容转换器功率密度受限的问题。

💡 主要创新点

• 提出使用电磁耦合的Class-D LC振荡器结构实现全集成DC-DC转换，无需片外电感。
• 实现了1.25GHz的高开关频率，提升了功率密度和转换效率。

🏷 关键词

📄 原文摘要

electronics has strengthened the demand for fully integrated power management circuits. Buck converters offer high efficiency, but they cannot satisfy the stringent size requirements because bulky off-chip inductors are required [1]. Switched-capacitor (SC) approaches provide fully integrated power management solutions; however, their power density is limited by the on-chip capacitance density [2]. Resonant switched capacitor (ReSC) converters need 3D die-stacked inductors or PCB-integrated inductors to achieve appropriate power density values, posing challenges for monolithic integration [3]. A fully integrated ReSC has been presented [4], which implements an on-chip resonator, avoiding any external or 3D stacked passive components. However, the switching losses

👥 作者与机构

Alessandro Novello1, Gabriele Atzeni1, Giorgio Cristiano1, Mathieu Coustans2, Taekwang Jang1

ETH Zurich, Zurich, Switzerland STMicroelectronics, Plan-les-Ouates, Switzerland 1 2 Over the past years, the constant reduction in the size of consumer