Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Minimum Time Control for Multiphase Buck Converter: Analysis and Application
Year:2014
Research Areas
  • Engineering,
  • Electric engineers, electronic and automatic (eil)
Information
Abstract
The combination of minimum time control and multiphase converter is a favorable option for dc-dc converters in applications where output voltage variation is required, such as RF amplifiers and dynamic voltage scaling in microprocessors, due to their advantage of fast dynamic response. In this paper, an improved minimum time control approach for multiphase buck converter that is based on charge balance technique, aiming at fast output voltage transition is presented. Compared with the traditional method, the proposed control takes into account the phase delay and current ripple in each phase. Therefore, by investigating the behavior of multiphase converter during voltage transition, it resolves the problem of current unbalance after the transient, which can lead to long settling time of the output voltage. The restriction of this control is that the output voltage that the converter can provide is related to the number of the phases, because only the duty cycles at which the multiphase converter has total ripple cancellation are used in this approach. The model of the proposed control is introduced, and the design constraints of the buck converter's filter for this control are discussed. In order to prove the concept, a four-phase buck converter is implemented and the experimental results that validate the proposed control method are presented. The application of this control to RF envelope tracking is also presented in this paper.
International
Si
JCR
Si
Title
Ieee Transactions on Power Electronics
ISBN
0885-8993
Impact factor JCR
4,08
Impact info
Volume
29
10.1109/TPEL.2013.2256798
Journal number
13736091
From page
958
To page
967
Month
ABRIL
Ranking
Participants
  • Autor: Pengming Cheng . (UPM)
  • Autor: Miroslav Vasic (UPM)
  • Autor: Oscar Garcia Suarez (UPM)
  • Autor: Jesus Angel Oliver Ramirez (UPM)
  • Autor: Pedro Alou Cervera (UPM)
  • Autor: Jose Antonio Cobos Marquez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Electrónica Industrial
  • Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
  • Centro o Instituto I+D+i: Centro de Electrónica Industrial. CEI
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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