Comparative study of linear and nonlinear passivity-based control methods for switched-mode power supplies in audio amplification systems

This paper presents the comparison of linear and nonlinear passivity-based controllers used to enhance the performance of power supplies employed in audio amplification systems. Theoretical analysis and experimental results have shown that passivity-based control topologies can reduce the output imp...

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Bibliographic Details
Published inIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society pp. 510 - 515
Main Authors Oliveira, T. R., Donoso-Garcia, P. F., Seleme, S. I., Morais, L. M. F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2011
Subjects
Capacitors
Control systems
Harmonic analysis
Impedance
Power supplies
Rails
Voltage control
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Summary:This paper presents the comparison of linear and nonlinear passivity-based controllers used to enhance the performance of power supplies employed in audio amplification systems. Theoretical analysis and experimental results have shown that passivity-based control topologies can reduce the output impedance of the power supply, thus providing low level ripple on the voltage rails and allowing the reduction of the power supply output capacitor.
ISBN:9781612849690
1612849695
ISSN:1553-572X
DOI:10.1109/IECON.2011.6119363