A 10MHz 92.1%-Efficiency Green-Mode Automatic Reconfigurable Switching Converter with Adaptively Compensated Single-Bound Hysteresis Control

📋 论文概要

本文提出了一种自动可重构的DC-DC开关转换器，采用绿色模式控制和自适应补偿技术，在10MHz开关频率下实现了92.1%的高效率，解决了高频负载波动下的快速瞬态响应和能效问题。

💡 主要创新点

• 提出绿色模式自动可重构架构，根据负载情况动态调整工作模式以提高轻载效率。
• 采用自适应单边补偿技术，在宽负载范围内保持环路稳定性，同时优化瞬态响应。

🏷 关键词

📄 原文摘要

Nowadays switching DC-DC converters have become indispensable in powerefficient VLSI systems. As operation frequency increases, load fluctuations in such a device require high switching frequencies in DC-DC converters for fast transient response. Meanwhile, as the switching frequency, fs, increases, sizes of inductors (Ls) and capacitors (Cs) decrease with fs, allowing the use of smaller off-chip or even on-chip Ls and Cs. This not only reduces cost and space, but also allows a larger or better battery to be used, which in turn, improves the system run-time and performance. However, as fs increases, power loss at the power stage will increase roughly with √fs [1]. The efficiency is thus sacrificed for high-frequency operations. For example, for a converter that achieves 90% efficiency at 1MHz, when fs is increased to 10 MHz, power loss goes up by √10 times, causing the efficiency to drop below 70% [1]. On the other hand, as semiconductor industry is facing unprecedented power crisis, n

👥 作者与机构

Chen Zheng, Dongsheng Ma

University of Arizona, Tucson, AZ