An On-Chip Resonant-Gate-Drive Switched-Capacitor Converter for Near-Threshold Computing Achieving 70.2% Efficiency at 0.92A/mm2 Current Density and 0.4V Output

📋 论文概要

该论文提出了一种用于近阈值计算(NTC)的片上谐振栅极驱动开关电容转换器，解决了NTC系统中需要大量高效DC-DC转换器的问题。通过谐振栅极驱动技术，实现了70.2%的转换效率，支持数百毫安的重负载。

💡 主要创新点

• 采用谐振栅极驱动技术，降低开关损耗，提高转换效率。
• 针对近阈值计算应用设计，支持快速动态电压缩放和独立核心供电。
• 片上集成，适合多核NTC系统，减少外部元件成本。

🏷 关键词

📄 原文摘要

promising approach to address the increasing demand for energy efficiency in computing platforms. In NTC, the supply voltage is scaled down to realize quadratic energy savings while degrading the operating frequency only linearly, which can be compensated by using manycore architectures. However, practical implementation of many-core NTC systems requires a large number of on-chip DC-DC converters to provide each core with independent voltages and fast dynamic voltage scaling at a reduced cost. Moreover, these converters must support heavy loads ( a few hundreds of milliamps) to supply the current required per core, or cluster of cores, while occupying minimal area (i.e. high current density) and achieving high powerconversion efficiency at low output voltages.

👥 作者与机构

Moataz Abdelfattah1, Muhammad Swilam1, Brian Dupaix2, Shane Smith1,

Ayman Fayed1, Waleed Khalil1 Ohio State University, Columbus, OH Air Force Research Laboratory, Wright-Patterson AFB, OH 1 2 Near-threshold computing (NTC) is a