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Scalable digital power controller with phase alignment and frequency synchronization

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Show simple item record Effler, Simon Halton, Mark Mooney, James Rinne, Karl 2017-10-13T13:13:41Z 2017-10-13T13:13:41Z 2014
dc.description peer-reviewed en_US
dc.description.abstract The trend in next-generation switched-mode power supplies will lead to modular, scalable solutions which deliver power efficiently over a wide range of operation. This paper details a new approach to introduce more advanced control features like phase-alignment and frequency synchronization into such scalable solutions. While these methods have been incorporated into multi-phase converters in the past, they all require the distribution of information among the individual converters. In distributed solutions, dedicated communication signals have been used to share this information. An advantage of the proposed method is that it does not require such communication signals between the individual power supplies and is therefore fully scalable and cost effective. Perturbances generated by the switching actions of the individual converters on the common input/output voltage are used by each converter to harvest information about the switching actions of its counterparts. An algorithm is proposed to align the individual phases and synchronize the switching frequencies based on this information. This allows a reduction of input/output capacitor ripple currents, similar to techniques used in multi-phase designs. Experimental results for an FPGA prototype implementation are presented. en_US
dc.language.iso eng en_US
dc.publisher IEEE Computer Society en_US
dc.relation.ispartofseries IEEE Transactions on Circuits and Systems;61 (4), pp. 1289-1297
dc.rights © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en_US
dc.subject DC-DC power conversion en_US
dc.subject digital control en_US
dc.subject frequency synchronization en_US
dc.subject phase-alignment en_US
dc.title Scalable digital power controller with phase alignment and frequency synchronization en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2017-10-13T13:07:06Z
dc.description.version ACCEPTED
dc.identifier.doi 10.1109/TCSI.2013.2283694
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1573235
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Ieee Transactions On Circuits And Systems I-Regular Papers
dc.description.status peer-reviewed

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