A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies

Yijie Qian; Shen Xu; Xinru Wang; Weifeng Sun

doi:10.1109/APEC48139.2024.10509149

A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies

Yijie Qian
, Shen Xu
, Xinru Wang
, Weifeng Sun

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

Abstract

This paper presents an auxiliary circuit designed to improve voltage regulation in voltage regulator modules (VRMs) applications. The proposed auxiliary circuit is compatible with most existing VRMs and effectively reduces voltage fluctuations in multi-core scenarios by dynamically adjusting its load connection, thereby minimizing the required output capacitance. Analysis of the improvement of voltage fluctuations by auxiliary circuits allows it to be easily deployed according to the target requirements. Simulation and experimental results validate the circuit's effectiveness, achieving a remarkable reduction in undershoot and overshoot of both cores with different voltage level by approximately 25% and 51%, respectively.

Original language	English
Title of host publication	2024 Ieee Applied Power Electronics Conference And Exposition, Apec
Pages	1417-1422
Number of pages	6
ISBN (Electronic)	9798350316643
DOIs	https://doi.org/10.1109/APEC48139.2024.10509149
Publication status	Published - 2024

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
ISSN (Print)	1048-2334

Keywords

Auxiliary circuit
Voltage fluctuation reduction

Access to Document

10.1109/APEC48139.2024.10509149

Cite this

Qian, Y., Xu, S., Wang, X., & Sun, W. (2024). A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies. In 2024 Ieee Applied Power Electronics Conference And Exposition, Apec (pp. 1417-1422). (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC48139.2024.10509149

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title = "A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies",

abstract = "This paper presents an auxiliary circuit designed to improve voltage regulation in voltage regulator modules (VRMs) applications. The proposed auxiliary circuit is compatible with most existing VRMs and effectively reduces voltage fluctuations in multi-core scenarios by dynamically adjusting its load connection, thereby minimizing the required output capacitance. Analysis of the improvement of voltage fluctuations by auxiliary circuits allows it to be easily deployed according to the target requirements. Simulation and experimental results validate the circuit's effectiveness, achieving a remarkable reduction in undershoot and overshoot of both cores with different voltage level by approximately 25\% and 51\%, respectively.",

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A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies. / Qian, Yijie; Xu, Shen; Wang, Xinru et al.
2024 Ieee Applied Power Electronics Conference And Exposition, Apec. 2024. p. 1417-1422 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

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Y1 - 2024

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A Practical Auxiliary Circuit for Voltage Fluctuation Reduction in Multi-core CPU Power Supplies

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