⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种混合开关电容-并联电感降压转换器，针对便携式可穿戴设备的高电流密度需求，实现了92.9%的峰值效率和0.3A/mm²的电流密度。该设计解决了传统开关电容转换器需要可重构拓扑增加复杂度以及降压转换器效率折衷的问题。
University of Lisboa, Lisbon, Portugal 1 2 The profile of portable and wearable devices keeps shrinking, demanding high current density power management integrated circuits. Switched-capacitor (SC) converters and buck converters are two common solutions. Unregulated SC converters can achieve high power density and high efficiency for specific voltage conversion ratios (VCRs). However, to cover wide input and output voltage ranges, they require a reconfigurable topology with multiple VCRs, thus increasing the system complexity. On the other hand, buck converters can reach a good efficiency over a wide continuous VCR range. Yet, they need a bulky inductor, which significantly degrades the power density. To address the power density and efficiency tradeoff, hybrid converters composed of both inductor and capacitor are among popular solutions [1-4]. When compared with the traditional buck converter, these hybrid converters feature lower voltage swing (smaller current ripple)
Guigang Cai1, Yan Lu1, Rui Martins1,2
University of Macau, Macau, China