AES E-Library

Analysis, Design and Assessment of Class A, B, AB, G and H Audio Power Amplifier Output Stages Based on Matlab Software

A procedure for analyzing, designing and assessing audio power amplifier output stages operating in class A, B, AB, G and H with reactive loads is presented. This study considers steady-state sinusoidal analysis for BJT, IGBT and MOSFET technologies. Electrical-mechanical-acoustical models of loudspeakers and enclosures are used whose parameters are obtained through the Thiele-Small model. An equivalent electrical-thermal model for the transistor-heatsink-ambience associated with the instantaneous and average powers is used for designing the power stage. A MATLAB software has been developed, which provides a considerable support to the designer for all required phases in an audio power amplifier output stage design.

Authors: Noceti Filho, Sidnei; Bortoni, Rosalfonso; Seara, Rui
Affiliations: Department of Electrical Engineering, Federal University of Santa Catarina, Florianópolis, Brazil ; Biquad Tecnologia Ltda., Santa Rita do Sapucaí, Brazil(See document for exact affiliation information.)
AES Convention:110 (May 2001) Paper Number:5358 Import into BibTeX
Subject:Signal Processing for Audio

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes18)   /pp2001/pp0105/110005.pdf

Start a discussion about this paper!