A Li-ion-Battery-Input 1-to-6V-Output Bootstrap-Free Hybrid Buck-or-Boost Converter Without RHP Zero Achieving 97.3% Peak Efficiency 6μs Recovery Time and 1.13μs/V DVS Rate

📋 论文概要

本文提出一种适用于锂离子电池输入（2.7-4.2V）的混合降压-升压转换器，无需自举电路，并消除了右半平面零点，实现了1到6V的宽输出电压范围。峰值效率达到97.3%，适用于需要快速电压切换的移动设备如包络跟踪射频功率放大器。

💡 主要创新点

• 提出一种无自举电路的混合降压-升压拓扑结构，简化了驱动电路设计。
• 通过电路设计消除右半平面零点，改善了动态响应稳定性。

🏷 关键词

📄 原文摘要

today’s mobile devices, buck-boost converters are widely used to convert the Li-ion battery voltage (VIN), typically ranging from 2.7 to 4.2V, to the specific output voltage (VO) levels required by various modules. While certain modules only need a fixed supply voltage [1–5], others, such as envelope tracking RF power amplifiers (PA), demand a wide range of supply voltages and exhibit fast changes in currents and voltages [6]. At times, the supply voltage of the PA is required to switch from sub-1V to 6V in a short time. Therefore, the buck-boost converter must handle the wide output voltage ranges and provide fast dynamic voltage scaling (DVS). Recent works in [1–5] only support a fixed VO instead of a wide range. In addition, conventional buck-boost converters and

👥 作者与机构

Junyi Ruan1, Junmin Jiang2, Chenzhou Ding1, Kai Yuan1, Ka Nang Leung3, Xun Liu1

Chinese University of Hong Kong, Shenzhen, China Southern University of Science and Technology, Shenzhen, China 3 Chinese University of Hong Kong, Hong Kong, China 1 2 In