Early-Stage Planning of Switched-Capacitor Converters in a Heterogeneous Chip

Leilei Wang; Lu Wang; Cheng Zhuo; Pingqiang Zhou

doi:10.1109/ACCESS.2020.2986335

IEEE Access (Jan 2020)

Early-Stage Planning of Switched-Capacitor Converters in a Heterogeneous Chip

Leilei Wang,
Lu Wang,
Cheng Zhuo,
Pingqiang Zhou

Affiliations

Leilei Wang: ORCiD; School of Information Science and Technology, ShanghaiTech University, Shanghai, China
Lu Wang: School of Information Science and Technology, ShanghaiTech University, Shanghai, China
Cheng Zhuo: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China
Pingqiang Zhou: School of Information Science and Technology, ShanghaiTech University, Shanghai, China

DOI: https://doi.org/10.1109/ACCESS.2020.2986335
Journal volume & issue: Vol. 8
pp. 85900 – 85911

Abstract

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The switched-capacitor converter (SCC) has been widely used for voltage regulation in multicore chips, where energy efficiency is the major concern. However as the overhead to integrate SCCs in a chip is non-negligible, the SCCs could not be overused. Hence in this paper we propose an early stage SCCs planning framework to obtain the SCC supply scheme together with the optimized Metal-Insulator-Metal (MIM) capacitance allocation and converter ratio selection for each SCC when the given number of SCCs is less than the number of cores. Besides, our method could also explore to find the best number of used SCCs for a given chip. The experiments show the results of our SCC planning methods.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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