Open AccessAnalysis of current-bidirectional buck-boost based switch-mode audio amplifier
Author(s) -
Gert Bolten Maizonave,
Michael A. E. Andersen,
Claus Kjærgaard,
Kristian Lund,
Lars Bo Hansen
Publication year - 2017
Publication title -
renewable energy and power quality journal
Language(s) - English
Resource type - Journals
ISSN - 2172-038X
DOI - 10.24084/repqj09.649
Subject(s) - current (fluid) , amplifier , computer science , mode (computer interface) , electrical engineering , electronic engineering , telecommunications , engineering , bandwidth (computing) , operating system
(26/01/2019) Analysis of current-bidirectional buck-boost based switch-mode audio amplifier 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.
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