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dc.contributor.authorKankanamge, Kosala
dc.contributor.authorKulatana, Nihal
dc.date.accessioned2013-08-20T02:22:27Z
dc.date.available2013-08-20T02:22:27Z
dc.date.copyright2013-03
dc.date.issued2013
dc.identifier.citationKankanmage, K. & Kulatana, N. (2013). Supercapacitor assisted LDO (SCALDO) techniquean extra low frequency design approach to high efficiency DC-DC converters and how it compares with the classical switched capacitor converters. In Proceedings of the 2013 Twenty-Eight Annual Applied Power Electronics Conference and Exposition(APEC), Long Beach, CA, USA (pp. 1979-1984). IEEE.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/7877
dc.description.abstractSupercapacitor assisted low dropout regulators (SCALDO) were proposed as an alternative design approach to DC-DC converters, where the supercapacitor circulation frequency (switching frequency) is in the order of few Hz to few 10s of Hz, with an output stage based on a low dropout regulator stage. For converters such as 12–5V, 5–3.3V and 5–1.5V, the technique provides efficiency improvement factors of 2, 1.33 and 3 respectively, in compared to linear converters with same input-output combinations. In a 5–1.5V SCALDO regulator, using thin profile supercapacitors in the range of fractional farads to few farads, this translates to an approximate end to end efficiency of near 90%. However, there were concerns that this patented technique is merely a variation of well-known switched capacitor (charge pump) converters. This paper is aimed at providing a broad overview of the capability of SCALDO technique with generalized theory, indicating its capabilities and limitations, and comparing the practical performance with a typical switched capacitor converter of similar current capability.en_NZ
dc.language.isoenen_NZ
dc.publisherIEEEen_NZ
dc.relation.ispartof2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
dc.relation.urihttp://ieeexplore.ieee.org/Xplore/defdeny.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fstamp%2Fstamp.jsp%3Ftp%3D%26arnumber%3D6520566%26userType%3Dinst&denyReason=-134&arnumber=6520566&productsMatched=null&userType=insten_NZ
dc.titleSupercapacitor assisted LDO (SCALDO) techniquean extra low frequency design approach to high efficiency DC-DC converters and how it compares with the classical switched capacitor convertersen_NZ
dc.typeConference Contributionen_NZ
dc.identifier.doi10.1109/APEC.2013.6520566en_NZ


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