On the Design and Efficiency of Class A, B, AB, G, and H Audio Power Amplifier Output Stages

Bortoni R, Filho SN, Seara R. On the Design and Efficiency of Class A, B, AB, G, and H Audio Power Amplifier Output Stages. J Audio Eng Soc. 2002;50(7/8):547-563. Available from: https://aes.org/publications/elibrary-page/?id=11071

@article{Bortoni2002_11071,
  author = {Bortoni, Rosalfonso and Filho, Sidnei Noceti and Seara, Rui},
  title = {{On the Design and Efficiency of Class A, B, AB, G, and H Audio Power Amplifier Output Stages}},
  journal = {Journal of the Audio Engineering Society},
  volume = {50},
  number = {7/8},
  pages = {547--563},
  year = {2002},
  month = aug,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11071}
}

TY  - JOUR
TI  - On the Design and Efficiency of Class A, B, AB, G, and H Audio Power Amplifier Output Stages
AU  - Bortoni, Rosalfonso
AU  - Filho, Sidnei Noceti
AU  - Seara, Rui
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 50
IS  - 7/8
SP  - 547
EP  - 563
PY  - 2002
DA  - 2002/08/06
UR  - https://aes.org/publications/elibrary-page/?id=11071
PB  - Audio Engineering Society
LA  - en
AB  - A procedure for analyzing, designing, and assessing audio power amplifier output stages operating in classes A, B, AB, G, and H with reactive loads is presented. The 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 a transistor heatsink ambience system associated with instantaneous and average powers is used for designing the power stage. A MATLAB software has been developed, which provides considerable support to the designer for all phases required in the design of audio power amplifier output stages.
ER  -