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

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

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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
StatePublished

Conference

ConferenceInternational Conference on Renewable Energies and Power Quality (ICREPQ'11)
CountrySpain
CityLas Palmas de Canaria
Period13/04/1115/04/11

Keywords

  • Amplifier, Losses, Booost, Audio, Modelling
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