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On Instantaneous Power Dissipation in Class B Amplifier

Journal: TEM JOURNAL - Technology, Education, Management, Informatics (Vol.3, No. 2)

Publication Date:

Authors : ; ;

Page : 101-105

Keywords : Instantaneous power; Power dissipation; Class B Amplifier; Generalized equation.;

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Abstract

The present paper describes the analysis of the instantaneous power dissipation by the two active components in a class B power amplifier. Attention is paid to restrictions of the instantaneous power dissipation relations in reference literature, and the consequences of their misuse. A new generalized equation that takes into account the power dissipated by the two active devices is proposed. The theoretical statement is substantiated by Matlab® numeric computation and visualization, Cadence OrCAD® simulations and measurements of a real-world audio power amplifier performed by NI USB-6211 measurement complex.

Last modified: 2014-07-03 01:31:08