Singular perturbation modelling technique and analysis for class-E DC-DC converter using piezoelectric transformer

P. Dong, Ka Wai Eric Cheng, Kin Wing Kwok, Siu Lau Ho, Y. Lu, J. M. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


A singular perturbation technique for modelling and simulation of a class-E DC-DC converter with piezoelectric transformer (PT) is presented. The open-loop characteristics of this converter are analysed. The singular perturbation method and the generalised state-space method are compared to model this DC-DC converter. In addition, a precise model which is based on the exact equations is used as a reference value. The calculation results show that the two proposed models give very good agreement to the precise model. As the singular perturbation model gives simple approach and a decoupling method has been used, it is highly recommended for all the PT models. The method has been examined and analysed in class-E DC-DC converter.
Original languageEnglish
Pages (from-to)518-526
Number of pages9
JournalIET Power Electronics
Issue number4
Publication statusPublished - 1 Jan 2008

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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