Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Analysis of the effect of modulation delays on the size of the output capacitor
Year:2014
Research Areas
  • Electric engineers, electronic and automatic (eil)
Information
Abstract
Constant frequency (PWM), constant on-time (COT) and constant off-time modulations exhibit inherent delays where the controller is unable to respond instantaneously. These delays can increase the required size of the output capacitor to meet dynamic requirements in applications with high demanding load such as the supply of microprocessors. This paper analyzes the minimum required output filter (output inductor and output capacitor) to meet a given specification and quantifies the effect that different modulations have in the minimum size of the output capacitor. The paper also shows a novel technique to mitigate the delays of the modulations by means of synchronizing the load step with the clock of the modulation. This technique is applicable to most of controllers as it only acts on the modulator.
International
Si
Congress
Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on
960
Place
Reviewers
Si
ISBN/ISSN
CDP08UPM
Start Date
26/08/2014
End Date
28/08/2014
From page
1
To page
10
Analysis of the effect of modulation delays on the size of the output capacitor
Participants
  • Autor: Jorge Cortés González (UPM)
  • Autor: Vladimir Svikovic . (UPM)
  • Autor: Pedro Alou Cervera (UPM)
  • Autor: Jesus Angel Oliver Ramirez (UPM)
  • Autor: Jose Antonio Cobos Marquez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Electrónica Industrial
  • Centro o Instituto I+D+i: Centro de Electrónica Industrial. CEI
  • Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
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