A 12A 89.3% Peak Efficiency and 26mV Undershoot 12-to-1V Two-Stage Converter with Regulated Resonant Switched-Capacitor Regulators

📋 论文概要

本文提出一种12A 89.3%峰值效率且仅有26mV下冲的12V转1V两阶段转换器，采用稳压谐振开关电容结构，解决了高输入电压与大输出电流下转换器效率、密度和速度的挑战。

💡 主要创新点

• 提出了两阶段稳压谐振开关电容转换器架构，实现了高降压比（12V到1V）和高效率
• 通过优化谐振开关电容设计，实现了89.3%的峰值效率和仅26mV的负载瞬态下冲，适用于高性能计算电源

🏷 关键词

📄 原文摘要

require a large output current at sub-1V voltages. On the other hand, the input voltage of power converters must be raised to ease the I2R loss on the system voltage bus. The high input voltage and large output current requirements impose significant challenges on the converter efficiency, density, and speed, which are all crucially important for high performance computing devices. The two-stage-regulator approach emerges as a promising solution which interfaces the high input voltage with an intermediate bus converter (IBC) and supplies the processors with a high-density point of load converter (PoL), as is shown in Fig. 21.1.1 [1-5]. Usually, the IBC converts the high input voltage into a lower intermediate bus, VMID, with high efficiency while the low-voltage PoL achieves high density and fast

👥 作者与机构

Shengdao Ren, Yukan Du, Menglian Zhao, Zhichao Tan, Chushan Li, Yong Ding,

Wuhua Li, Wanyuan Qu Zhejiang University, Hangzhou, China The ever-hungry computing needs for data centers and automotive applications