Analysis of current-bidirectional buck-boost based switch-mode audio amplifier

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    Abstract

    The following studdy was carried out in order to assses quantitatively the performannce of the buck--boost converter whhen used as swiitch-mode audio amplifier. It comprises of, to beggin with, the de limitation of design criteria bassed on the state of-the-art solution, which is based in a differential mode buckbased amplifier with a boost converter as power supply. The averaged switch modelling of the differential mode current bidirectional topology is also used, in order to analyze the steady state and frequency-wise behaviour of this converter and parameterize it to meet the design criteria. Next, several piecewise-linear siimulation resultss are shown with detail enough to emphasize the features of the converter. A simple prototype is implemented to verify the main predicted features. Presently no previous publicat ion could be found containing a thorough analysis of this topology in such configuration when applied for audio.
    Original languageEnglish
    Title of host publicationICREPQ'11 International Conference on Renewable Energies and Power Quality
    Publication date2011
    ISBN (Print)978-84-614-7527-8
    Publication statusPublished - 2011
    EventInternational Conference on Renewable Energies and Power Quality (ICREPQ'11) - Canary Islands Convention Centre, Las Palmas de Canaria, Spain
    Duration: 13 Apr 201115 Apr 2011

    Conference

    ConferenceInternational Conference on Renewable Energies and Power Quality (ICREPQ'11)
    LocationCanary Islands Convention Centre
    Country/TerritorySpain
    CityLas Palmas de Canaria
    Period13/04/201115/04/2011

    Keywords

    • Amplifier
    • Losses
    • Booost
    • Audio
    • Modelling

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