A wavelet-based piecewise approach for steady-state analysis of power electronics circuits

K. C. Tam, Siu Chung Wong, Chi Kong Tse

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


Simulation of steady-state waveforms is important to the design of power electronics circuits, as it reveals the maximum voltage and current stresses being imposed upon specific devices and components. This paper proposes an improved approach to finding steady-state waveforms of power electronics circuits based on wavelet approximation. The proposed method exploits the time-domain piecewise property of power electronics circuits in order to improve the accuracy and computational efficiency. Instead of applying one wavelet approximation to the whole period, several wavelet approximations are applied in a piecewise manner to fit the entire waveform. This wavelet-based piecewise approximation approach can provide very accurate and efficient solution, with much less number of wavelet terms, for approximating steady-state waveforms of power electronics circuits.
Original languageEnglish
Pages (from-to)559-582
Number of pages24
JournalInternational Journal of Circuit Theory and Applications
Issue number5
Publication statusPublished - 1 Sep 2006


  • Power electronics
  • Steady-state waveform
  • Switching circuits
  • Wavelet approximation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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