An Improved Wavelet Approach for Finding Steady-State Waveforms of Power Electronics Circuits Using Discrete Convolution

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


Due to the switching action and the presence of parasitics, waveforms arising from power electronics circuits often contain high-frequency ringings embedded in slowly varying segments. Such a feature is consistent with the localization property of wavelets which has previously been exploited for fast approximations of steady-state waveforms. This paper proposes an improved and more robust approach for calculating the wavelet coefficients, exploiting the orthogonal property of the Chebyshev polynomials. Simulation results demonstrate the effectiveness of the new algorithm.
Original languageEnglish
Pages (from-to)690-694
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Issue number10
Publication statusPublished - 1 Jan 2005


  • Chebyshev polynomials
  • power electronics circuits
  • steady-state solutions
  • wavelet transforms

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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