Zero-order switching networks and their applications to power factor correction in switching converters

Chi Kong Tse

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


This paper addresses the requirements of networks containing linear inductors, capacitors and ideal switches for synthesis of zero-order input impedance. Sufficient conditions for achieving zero-order input impedance are stated in terms of the network topology and the switching sequence. Such networks have direct practical relevance to power factor correction (PFC). Based on zero-order switching networks, a comprehensive study is presented for many existing PFC circuits as well as new circuit topologies.
Original languageEnglish
Pages (from-to)667-675
Number of pages9
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Issue number8
Publication statusPublished - 1 Dec 1997


  • DC/DC converters
  • Graph theory applications
  • Power factor correction
  • Switch mode power supplies

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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