Switching/Linear Hybrid Audio Power Amplifiers for Domestic Applications, Part 1: The Class-B•D Amplifier

Dymond H, Mellor P. Switching/Linear Hybrid Audio Power Amplifiers for Domestic Applications, Part 1: The Class-B•D Amplifier. In: AES Convention 129. Audio Engineering Society; 2010.pp. 8197:1-22. Available from: https://aes.org/publications/elibrary-page/?id=15619

@inproceedings{Dymond2010_15619,
  author = {Dymond, Harry and Mellor, Phil},
  title = {{Switching/Linear Hybrid Audio Power Amplifiers for Domestic Applications, Part 1: The Class-B•D Amplifier}},
  booktitle = {AES Convention 129},
  pages = {8197:1-22},
  url = {https://aes.org/publications/elibrary-page/?id=15619},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society}
}

TY  - CPAPER
TI  - Switching/Linear Hybrid Audio Power Amplifiers for Domestic Applications, Part 1: The Class-B•D Amplifier
AU  - Dymond, Harry
AU  - Mellor, Phil
T2  - AES Convention 129
SP  - 1
EP  - 22
M1  - Paper 8197
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15619
PB  - Audio Engineering Society
LA  - en
AB  - The analysis, design and testing of a parallel switching/linear hybrid audio power amplifier rated at 100 W into 8 Ù are presented. The amplifier employs a hysteretically controlled switching stage and high-bandwidth linear amplifier whose high-gain negative-feedback loop controls the output signal. The majority of the output current is provided by the switching stage, enhancing efficiency. The amplifier’s fidelity has been tested with standard commercially available equipment, whilst efficiency has been evaluated across a very wide range of signal and load conditions using a custom active-load and automated test procedure. The combined fidelity and efficiency test results are analysed, and the suitability for domestic applications of this amplifier configuration discussed.
ER  -