A Hybrid LED Sink Driver Combining a Buck-Boost Converter and a Switched-Capacitor Step-Up Converter with Nested Topology

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dc.contributor.authorEguchi, K.
dc.contributor.authorShibata, A.
dc.contributor.authorDo, W.
dc.contributor.authorAsadi, Farzin
dc.date.accessioned2024-07-12T21:40:41Z
dc.date.available2024-07-12T21:40:41Z
dc.date.issued2021en_US
dc.department[Belirlenecek]en_US
dc.description4th International Conference on Circuits, Systems and Devices, ICCSD 2020 -- 23 October 2020 through 25 October 2020 -- -- 167122en_US
dc.description.abstractFor LED lighting applications, this paper presents a novel light emitting diode (LED) sink driver with high voltage gains. Unlike traditional LED sink drivers, the proposed LED sink driver consists of a buck-boost converter and a switched-capacitor (SC) step-up converter with nested topology, where an input voltage is converted twice by cascading these two converter blocks. Therefore, theproposed hybrid topology enables the LED sink driver to achieve not only flexible control of an output voltage but also high voltage gains and few passive components. The characteristics of the proposed LED sink driver are investigated by theoretical analysis, simulation program with integrated circuit emphasis (SPICE) simulations, and breadboard experiments. In the performed simulations, the power efficiency of the proposed driver reaches about 80 % at 500 mW when the duty factor is 0.5. Furthermore, the experiment demonstrates high voltage gains and flexible controllability of an output voltage. © Published under licence by IOP Publishing Ltd.en_US
dc.identifier.doi10.1088/1742-6596/1729/1/012008
dc.identifier.issn1742-6588
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85101724698en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1088/1742-6596/1729/1/012008
dc.identifier.urihttps://hdl.handle.net/20.500.12415/7440
dc.identifier.volume1729en_US
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherIOP Publishing Ltden_US
dc.relation.ispartofJournal of Physics: Conference Seriesen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKY08784
dc.subjectElectric Current Regulatorsen_US
dc.subjectGain Measurementen_US
dc.subjectLight Emitting Diodesen_US
dc.subjectSpiceen_US
dc.subjectTopologyen_US
dc.subjectBuck Boost Converteren_US
dc.subjectFlexible Controlen_US
dc.subjectHigh Voltage Gainen_US
dc.subjectHybrid Topologiesen_US
dc.subjectPower Efficiencyen_US
dc.subjectSimulation Program With Integrated Circuit Emphasisen_US
dc.subjectStep-Up Converteren_US
dc.subjectSwitched Capacitoren_US
dc.subjectDc-Dc Convertersen_US
dc.titleA Hybrid LED Sink Driver Combining a Buck-Boost Converter and a Switched-Capacitor Step-Up Converter with Nested Topologyen_US
dc.typeConference Object
dspace.entity.typePublication

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