Multi-loop controller for wide operating range single-ended primary inductor DC/DC converter

K. M. Tsang, Wai Lok Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


A novel controller based on the decoupling of single-ended primary inductor converter (SEPIC) state-space averaging model to four simple first-order systems is proposed. Instead of designing a single controller for a fourth-order SEPIC converter, four PI controllers are designed for the four decoupled systems. Combining the four PI controllers with the four decoupled systems forms a multi-loop feedback control system which is able to work at a wider operating condition. Circuit implementation of the proposed controller is presented and experimental results are included to demonstrate the effectiveness of the proposed design scheme.
Original languageEnglish
Pages (from-to)891-898
Number of pages8
JournalIET Power Electronics
Issue number8
Publication statusPublished - 1 Sep 2011

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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