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

McNeill, Neville; Gupta, Naren K; Burrow, Steve G; Holliday, Derrick; Mellor, Phil H

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.

Citation

McNeill, N., Gupta, N. K., Burrow, S. G., Holliday, D., & Mellor, P. H. (2008). Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer. IEEE Transactions on Power Electronics, 23, 591-599. https://doi.org/10.1109/TPEL.2007.915662

• Journal Article Type: Article
• Publication Date: 2008
• Deposit Date: Apr 10, 2014
• Print ISSN: 0885-8993
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 23
• Pages: 591-599
• DOI: https://doi.org/10.1109/TPEL.2007.915662
• Keywords: Current transformer (CT); power converter; zero-flux CT
• Public URL: http://researchrepository.napier.ac.uk/id/eprint/6753
• Publisher URL: http://dx.doi.org/10.1109/TPEL.2007.915662