Classification of auxiliary circuit schemes for feeding fast load transients in switching power supplies

Zhenyu Shan, Chi Kong Tse, Siew Chong Tan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

This paper presents a systematic classification of auxiliary circuit schemes for feeding fast load transients in switching power converters. The classification is based on the types of the implementation methods, practical constraints and performance. In particular, auxiliary circuits are classified according to the ways in which they are connected with the power supplies and loads, as well as the choice of control methods. Designed as a shunt output, the 'intruding' type of auxiliary circuits is effective and less dissipative. Moreover, to reduce complexity, auxiliary circuits may be designed in the form of a bridge output, and employs a 'non-intruding' type of control scheme. Furthermore, provision of pre-informed loading condition leads to further simplification of auxiliary circuitry and improvement of efficiency. Experimental measurements are provided to support the analysis of the properties of various types of circuits.
Original languageEnglish
Article number6634277
Pages (from-to)930-942
Number of pages13
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Volume61
Issue number3
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Auxiliary circuit
  • classification
  • dc-dc converter
  • fast transient

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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