Multivariable analysis of VR controllers with load line regulation and phase current balancing

B. Oraw, Raja Ayyanar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

The multivariable complexity of multiphase buck voltage regulators, is examined, including multi-input-multi-output models and multiple control objectives. Voltage regulation, load line regulation and phase current balancing are found to be competing control objectives. Decoupling control frameworks are proposed that resolve the multivariable conflict and simplify the controller design. Strategies for output impedance shaping are proposed. Simple current balancing control is demonstrated, which is also extended to provide novel phase shedding and asymmetrical current sharing control. This paper provides a complete voltage regulator control solution.

Original languageEnglish (US)
Title of host publication2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC
Pages1728-1734
Number of pages7
DOIs
StatePublished - Aug 18 2008
Event2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC - Austin, TX, United States
Duration: Feb 24 2008Feb 28 2008

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC
CountryUnited States
CityAustin, TX
Period2/24/082/28/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Oraw, B., & Ayyanar, R. (2008). Multivariable analysis of VR controllers with load line regulation and phase current balancing. In 2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC (pp. 1728-1734). [4522960] (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2008.4522960