供电网络中电压转换器及电压噪声优化方案

doi:10.19665/j.issn1001-2400.2020.04.017

西安电子科技大学学报 ›› 2020, Vol. 47 ›› Issue (4): 124-131.doi: 10.19665/j.issn1001-2400.2020.04.017

供电网络中电压转换器及电压噪声优化方案

王璐^1,^2,³(),王磊磊^1,^2,³

1.上海科技大学信息科学与技术学院,上海 201210
2.中国科学院上海微系统与信息技术研究所,上海 200050
3.中国科学院大学电子电气与通信工程学院,北京 100049

收稿日期:2019-12-24 出版日期:2020-08-20 发布日期:2020-08-14
作者简介:王璐(1995—),女,上海微系统与信息技术研究所硕士研究生,E-mail:wanglu2@shanghaitech.edu.cn.
基金资助:
国家自然科学基金(61401276)

Optimization of the voltage regulators and voltage noise for the power delivery network

WANG Lu^1,^2,³(),WANG Leilei^1,^2,³

1. School of Information Science and Technology, Shanghai Technology University, Shanghai 201210, China
2. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
3. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2019-12-24 Online:2020-08-20 Published:2020-08-14

摘要/Abstract

摘要：

为了降低集成在片上供电网络中的开关电容电压转换器的转换功耗和负载端的电压噪声,提出一种优化方案来优化开关电容电压转换器的转换电容和去耦电容两者间的电容资源分配。通过建立和求解不等式约束非线性规划问题,获得了转换电容和去耦电容共享电容资源的最优分配,有效地降低了电压转换器的转换功耗和电压噪声之和。实验结果表明,转换电容和去耦电容的组合优化方法能够将转换功耗和电压噪声之和降低约11%~28%。对于更大规模的供电网络,该优化方案能够有效地降低电压转换功耗和负载端的电压噪声。

关键词: 供电网络, 电压转换, 电压噪声, 去耦电容, 非线性规划

Abstract:

In order to reduce both the power loss of the switched capacitor converter integrated in the on-chip power delivery network and the voltage noise at the load, this paper proposes an optimization method to optimize the capacitance allocation between the flying capacitors of the switched-capacitor converter (SCCs) and the decoupling capacitors at the load. By formulating and solving the inequality-constrained nonlinear programming problem, the SCCs’ flying capacitance and decoupling capacitance can be optimally allocated and the sum of power loss and voltage noise is effectively reduced. Experimental results show that the joint optimization of the SCCs’ capacitance and decoupling capacitance can reduce the sum of power loss and voltage noise by about 11%~28%. For larger power deliver networks, this method can efficiently reduce the power loss and voltage noise.

Key words: power delivery network, voltage regulation, voltage noise, decoupling capacitor, nonlinear programming

中图分类号:

TN47

王璐,王磊磊. 供电网络中电压转换器及电压噪声优化方案[J]. 西安电子科技大学学报, 2020, 47(4): 124-131.

WANG Lu,WANG Leilei. Optimization of the voltage regulators and voltage noise for the power delivery network[J]. Journal of Xidian University, 2020, 47(4): 124-131.

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转换比率	V_nl/V	N_sw	M_topo	M_sw	γ
2:1	0.6	4	2	2	2
3:2	0.8	7	9/8	2	1
4:3	0.9	10	8/9	7/3	2/3
1:1	1.2	2	1/2	1	1

参数	组合优化方法	方法1	方法2	方法3	方法4
C_sw/nF	155.4	260.0	260.0	260.0	260.0
C_decap/nF	144.6	40.0	40.0	40.0	40.0
P_loss/mW	280.8	286.1	286.1	274.1	274.1
V_noise/mV	58.3	113.4	196.3	113.4	196.3
优化目标	339.1	399.5	482.4	387.5	470.4

供电网络中电压转换器及电压噪声优化方案

Optimization of the voltage regulators and voltage noise for the power delivery network

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