Low-frequency sampled-data models of switched mode DC-DC converters

Fakhralden Huliehel, Sam Ben-Yaakov

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

Practical implementation of a low-cost digital controller for switched-mode converters is feasible if the sampling rate is lower than the switching frequency. The authors present a sampled-data model of a switched-mode converter applicable for the low-frequency range. The assumption made is that the sampling rate is sufficiently high as dictated by the sampling theorem. It is shown that the models are linear for small-signal operation but represent a bilinear system under large-signal conditions. The models could be useful for the design of a microprocessor-based controller for switched-mode converters, with improved transient response. Two examples of possible applications of the model are discussed: as a fast and efficient time-domain simulator and as a tool for the analysis and design of a fast-turn-on boost converter.

Original languageEnglish
Pages (from-to)492-499
Number of pages8
JournalPESC Record - IEEE Annual Power Electronics Specialists Conference
Volume1
StatePublished - 1 Dec 1989
Event20th Annual IEEE Power Electronics Specialists Conference - PESC'89 - Milwaukee, WI, USA
Duration: 26 Jun 198929 Jun 1989

ASJC Scopus subject areas

  • Modeling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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