Transient Suppression Scheme for Mitigation of High-Performance VRM Intricate Load Profiles

Bar Halivni; Tom Urkin; Mor Mordechai Peretz

doi:10.1109/APEC43599.2022.9773523

Transient Suppression Scheme for Mitigation of High-Performance VRM Intricate Load Profiles

Bar Halivni
, Tom Urkin
, Mor Mordechai Peretz

Department of Electrical & Computer Engineering

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

This paper introduces a non-linear control scheme that supports near ideal transient recovery for high-frequency high-di/dt load-transients that exceed the control bandwidth in single-phase and multiphase buck converter VRMs. The new algorithm adapts the switching sequence for recovery using information obtained from a simple, plug-and-play, comparator-based observer of the output voltage. Detailed control algorithm is provided as well as implementation considerations for high-performance multiphase VRMs. The new control method is demonstrated via simulation on a multiphase VRM for complex load-profiles. Experimental verification has been carried out by intel certified-hardware of DDR4 emulation modules on a 12V-to-l.2V 120W multiphase buck VRM accommodating 80A load transients.

Original language	English
Pages	1241-1247
Number of pages	7
DOIs	https://doi.org/10.1109/APEC43599.2022.9773523
State	Published - 1 Jan 2022
Event	37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 - Houston, United States Duration: 20 Mar 2022 → 24 Mar 2022

Conference

Conference	37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022
Country/Territory	United States
City	Houston
Period	20/03/22 → 24/03/22

Keywords

DDR
Digital control
VRM
buck
hybrid control
multiphase

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/APEC43599.2022.9773523

Cite this

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title = "Transient Suppression Scheme for Mitigation of High-Performance VRM Intricate Load Profiles",

abstract = "This paper introduces a non-linear control scheme that supports near ideal transient recovery for high-frequency high-di/dt load-transients that exceed the control bandwidth in single-phase and multiphase buck converter VRMs. The new algorithm adapts the switching sequence for recovery using information obtained from a simple, plug-and-play, comparator-based observer of the output voltage. Detailed control algorithm is provided as well as implementation considerations for high-performance multiphase VRMs. The new control method is demonstrated via simulation on a multiphase VRM for complex load-profiles. Experimental verification has been carried out by intel certified-hardware of DDR4 emulation modules on a 12V-to-l.2V 120W multiphase buck VRM accommodating 80A load transients.",

keywords = "DDR, Digital control, VRM, buck, hybrid control, multiphase",

author = "Bar Halivni and Tom Urkin and Peretz, \{Mor Mordechai\}",

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AU - Peretz, Mor Mordechai

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N2 - This paper introduces a non-linear control scheme that supports near ideal transient recovery for high-frequency high-di/dt load-transients that exceed the control bandwidth in single-phase and multiphase buck converter VRMs. The new algorithm adapts the switching sequence for recovery using information obtained from a simple, plug-and-play, comparator-based observer of the output voltage. Detailed control algorithm is provided as well as implementation considerations for high-performance multiphase VRMs. The new control method is demonstrated via simulation on a multiphase VRM for complex load-profiles. Experimental verification has been carried out by intel certified-hardware of DDR4 emulation modules on a 12V-to-l.2V 120W multiphase buck VRM accommodating 80A load transients.

AB - This paper introduces a non-linear control scheme that supports near ideal transient recovery for high-frequency high-di/dt load-transients that exceed the control bandwidth in single-phase and multiphase buck converter VRMs. The new algorithm adapts the switching sequence for recovery using information obtained from a simple, plug-and-play, comparator-based observer of the output voltage. Detailed control algorithm is provided as well as implementation considerations for high-performance multiphase VRMs. The new control method is demonstrated via simulation on a multiphase VRM for complex load-profiles. Experimental verification has been carried out by intel certified-hardware of DDR4 emulation modules on a 12V-to-l.2V 120W multiphase buck VRM accommodating 80A load transients.

KW - DDR

KW - Digital control

KW - VRM

KW - buck

KW - hybrid control

KW - multiphase

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DO - 10.1109/APEC43599.2022.9773523

M3 - Paper

AN - SCOPUS:85131959900

SP - 1241

EP - 1247

T2 - 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022

Y2 - 20 March 2022 through 24 March 2022

ER -

Transient Suppression Scheme for Mitigation of High-Performance VRM Intricate Load Profiles

Abstract

Conference

Keywords

ASJC Scopus subject areas

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