Current Context and Research Trends in Linear DC–DC Converters

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aut.relation.endpage4594
aut.relation.issue9en_NZ
aut.relation.journalApplied Sciencesen_NZ
aut.relation.startpage4594
aut.relation.volume12en_NZ
aut.researcherLie, Tek
dc.contributor.authorGunawardane, Ken_NZ
dc.contributor.authorPadmawansa, Nen_NZ
dc.contributor.authorKularatna, Nen_NZ
dc.contributor.authorSubasinghage, Ken_NZ
dc.contributor.authorLie, TTen_NZ
dc.date.accessioned2022-05-04T01:57:52Z
dc.date.available2022-05-04T01:57:52Z
dc.description.abstractWith the introduction of switch-mode power supplies (SMPS) in the mid-1970s, the efficiency of DC–DC conversion rose from 60 to 80% and SMPS became a popular power supply solution. However, linear regulators have not become obsolete. The modern power management system in portable devices supports a complex mix of DC–DC converters, combining switch-mode power supplies (SMPS), switched capacitor converters (SCCs), and linear regulators in the form of low-dropout regulators (LDOs). LDOs are used to supply low-voltage DC power rails with very low noise and high current slew rate capability, which are usually fed by the output rail of SMPS. This paper provides a comprehensive review of the evolution of the application scope of linear-type DC–DC converters in the power supply context and the present research trends. First, we review the context of linear DC–DC converters in detail, particularly in portable device power supplies. Then, the details of LDO regulators and their recent industry development and research trends are discussed. Then, the discussion focuses on supercapacitor-assisted low-dropout (SCALDO) regulator design and its scope in the portable device power management together with SCALDO-based dual output and reduced switch designs, and finally, the conclusions follow.en_NZ
dc.identifier.citationApplied Sciences, 12(9), 4594. https://doi.org/10.3390/app12094594
dc.identifier.doi10.3390/app12094594en_NZ
dc.identifier.issn2076-3417en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/15112
dc.languageenen_NZ
dc.publisherMDPI AGen_NZ
dc.relation.urihttps://www.mdpi.com/2076-3417/12/9/4594
dc.rights© 2022 by the authors. Li censee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and con ditions of the Creative Commons At tribution (CC BY) license (https://cre ativecommons.org/licenses/by/4.0/)
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectDC–DC converters; Portable devices; LDO; Supercapacitor technologies; SCALDO
dc.titleCurrent Context and Research Trends in Linear DC–DC Convertersen_NZ
dc.typeJournal Article
pubs.elements-id454023
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Faculty of Design & Creative Technologies
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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