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 Citations (Scopus)

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 publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Pages1728-1734
Number of pages7
DOIs
StatePublished - 2008
Event2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC - Austin, TX, United States
Duration: Feb 24 2008Feb 28 2008

Other

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

Fingerprint

Controllers
Voltage regulators
Voltage control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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

Multivariable analysis of VR controllers with load line regulation and phase current balancing. / Oraw, B.; Ayyanar, Raja.

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. 2008. p. 1728-1734 4522960.

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

Oraw, B & Ayyanar, R 2008, Multivariable analysis of VR controllers with load line regulation and phase current balancing. in Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC., 4522960, pp. 1728-1734, 2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC, Austin, TX, United States, 2/24/08. https://doi.org/10.1109/APEC.2008.4522960
Oraw B, Ayyanar R. Multivariable analysis of VR controllers with load line regulation and phase current balancing. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. 2008. p. 1728-1734. 4522960 https://doi.org/10.1109/APEC.2008.4522960
Oraw, B. ; Ayyanar, Raja. / Multivariable analysis of VR controllers with load line regulation and phase current balancing. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. 2008. pp. 1728-1734
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