Converter-Gating: A Power Efficient and Secure On-Chip Power Delivery System

被引：33
作者：
Uzun, Orhun Aras [1 ]
Koese, Selcuk [1 ]
机构：
[1] Univ S Florida, Dept Elect Engn, Tampa, FL 33620 USA
来源：
IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS | 2014年 / 4卷 / 02期
基金：
美国国家科学基金会;
关键词：
DC-DC converter; hardware security; on-chip voltage regulation; side-channel attack; switched capacitor; DC-DC CONVERTER; VOLTAGE REGULATOR; DESIGN; OPTIMIZATION; LOAD;
D O I：
10.1109/JETCAS.2014.2315880
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Dynamic power management techniques and related voltage converter architectures are proposed to design a secure and efficient on-chip power delivery system. A new power management technique, converter-gating, that adaptively turns on and off individual stages of an interleaved switched-capacitor voltage converter based on the workload information to improve the voltage conversion efficiency is proposed. Converter-gating technique is further utilized as a countermeasure against side channel power analysis attacks by pseudo-randomly controlling the converter activity. A new method is proposed to improve the response time of the converter during transient load changes by adaptively configuring the conversion ratio of a switched capacitor voltage converter. The proposed converter is designed and verified using IBM 130 nm technology kit. The proposed system achieves 5% higher power conversion efficiency compared to conventional converters, improves the response time to transient load changes from 1.4 mu s to 104 ns and reduces the correlation between the input current and load current.
引用
收藏
页码：169 / 179
页数：11
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