State feedback linearized model for phase-controlled series-parallel resonant converters

A.A. Aboushady, K.H. Ahmed, S.J. Finney, B.W. Williams

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

5 Citations (Scopus)
119 Downloads (Pure)


This paper proposes a linearized large-signal state space model for phase-controlled series-parallel resonant converter. The model combines multiple-frequency and average state-space modeling techniques to generate a universal model with DC state variables that are easier to control compared to the fast resonant tank dynamics. In order to perform linearization, the proposed model utilizes a state feedback scheme from output filter inductor current. The model also serves as a tool for large signal prediction/estimation of converter state variables. The model accuracy was verified by comparing with a detailed switching model of the converter built in MATLAB simulation environment.
Original languageEnglish
Title of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
Number of pages7
ISBN (Print)978-1-61284-969-0
Publication statusPublished - 2011


  • mathematical model
  • integrated circuit modeling
  • resonant frequency
  • state feedback
  • inductors
  • equations
  • resistance


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