Improved transient response of controllers by synchronizing the modulator with the load step: application to v2ic

Cortés González, Jorge and Svikovic, Vladimir and Alou Cervera, Pedro and Oliver Ramírez, Jesús Angel and Cobos Marquez, Jose Antonio (2015). Improved transient response of controllers by synchronizing the modulator with the load step: application to v2ic. "IEEE Transactions on Power Electronics", v. 30 (n. 3); pp. 1577-1590. ISSN 0885-8993. https://doi.org/10.1109/TPEL.2014.2314242.

Description

Title: Improved transient response of controllers by synchronizing the modulator with the load step: application to v2ic
Author/s:
  • Cortés González, Jorge
  • Svikovic, Vladimir
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • Cobos Marquez, Jose Antonio
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Power Electronics
Date: March 2015
ISSN: 0885-8993
Volume: 30
Subjects:
Freetext Keywords: Clock synchronization, dynamic voltage scaling, load transient, point of load, V 2 Ic
Faculty: Centro de Electrónica Industrial (CEI) (UPM)
Department: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

V2Ic is a ripple-based control with an excellent performance for load transients and reference voltage tracking because it exhibits a feedforward of the load current and the error of the output voltage. However, if V2Ic is modulated with constant frequency, constant on-time or constant off-time, its dynamic response is hindered by delays in the response. This paper proposes a technique that synchronizes the clock of the converter to initialize the duty cycle when a worst-case load transient occurs using the current through the output capacitor to detect load transients. It is exemplified on a V2Ic control but it is applicable to most of controllers as it only acts on the modulator.

More information

Item ID: 41419
DC Identifier: http://oa.upm.es/41419/
OAI Identifier: oai:oa.upm.es:41419
DOI: 10.1109/TPEL.2014.2314242
Official URL: http://ieeexplore.ieee.org/document/6780595/
Deposited by: Memoria Investigacion
Deposited on: 22 Apr 2017 07:38
Last Modified: 22 Apr 2017 07:38
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