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| Title:
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Analisys of Current-Bidirectional Buck-Boost Based Automotive Switch-Mode Audio Amplifier |
| Type:
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Article in proceedingsArticle in proceedings |
| Participant(s):
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Technical University of Denmark
Technical University of Denmark
Email:
Technical University of Denmark
Email:
Forfatter:
Lund, Kristian L.
Bang & Olufsen ICEpower a/s
Forfatter:
Hansen, Lars B. R.
Bang & Olufsen ICEpower a/s
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| Abstract:
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The following study was carried out in
order to assess quantitatively the performance of the
buck-boost converter when used as switch-mode
audio amplifier. It comprises of, to begin with, the
delimitation of design criteria based on the state-ofthe-
art solution, which is based in a differential mode
buck-based 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 domain behaviour of this converter and
parameterize it to meet the design criteria. Next,
several piecewise-linear simulation results 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
publication could be found containing a thorough
analysis of this topology in such configuration when
applied for audio. |
| Published:
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part of: Automotive Power Electronics Conference and Exhibition., 2011, |
| Presented at:
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4. International Conference and Exhibition "Automotive Power Electronics", Paris, France |
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