Application of reset voltage feedback for droop minimisation in the unidirectional current pulse transformer

Neville McNeill, Naren Gupta, Stephen Burrow, Derrick Holliday, Philip Mellor

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This paper investigates the application of reset voltage feedback for reducing errors due to droop in the signal derived from a current transformer sensing unidirectional current pulses in switched-mode power converter applications. Droop is minimised by applying a correcting voltage in series with the transformer's output terminals during the current pulse. The magnitude of the correcting voltage is based on the transformer's reset voltage sensed during the power converter's previous switching cycles. A model of the scheme is presented and a circuit is implemented. Reductions in both peak and average current droop are demonstrated.
Original languageEnglish
Pages (from-to)591-599
Number of pages10
JournalIEEE Transactions on Power Electronics
Volume23
Issue number2
DOIs
Publication statusPublished - 1 Mar 2008

Keywords

  • current transformers
  • power convertors
  • pulse transformers
  • switched mode power supplies

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