Utilization of Non-Linear Converters for Audio Amplification

Iversen N, Birch T, Knott A. Utilization of Non-Linear Converters for Audio Amplification. In: AES Conference: 48th International Conference: Automotive Audio. Audio Engineering Society; 2012. Paper 3-1. Available from: https://aes.org/publications/elibrary-page/?id=16426

@inproceedings{Iversen2012_16426,
  author = {Iversen, Niels and Birch, Thomas and Knott, Arnold},
  title = {{Utilization of Non-Linear Converters for Audio Amplification}},
  booktitle = {AES Conference: 48th International Conference: Automotive Audio},
  note = {Paper 3-1},
  year = {2012},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16426}
}

TY  - CPAPER
TI  - Utilization of Non-Linear Converters for Audio Amplification
AU  - Iversen, Niels
AU  - Birch, Thomas
AU  - Knott, Arnold
T2  - AES Conference: 48th International Conference: Automotive Audio
M1  - Paper 3-1
PY  - 2012
DA  - 2012/09/06
UR  - https://aes.org/publications/elibrary-page/?id=16426
PB  - Audio Engineering Society
LA  - en
AB  - Class D amplifiers fits the automotive demands quite well. The traditional buck-based amplifier has reduced both the cost and size of amplifiers. However the buck topology is not without its limitations. The maximum peak AC output voltage produced by the power stage is only equal the supply voltage. The introduction of non-linear converters for audio amplification defeats this limitation. A Cuk converter, designed to deliver an AC peak output voltage twice the supply voltage, is presented in this paper. A 3V prototype has been developed to prove the concept. The prototype shows that it is possible to achieve an peak AC output voltage twice the supply voltage but also reveals some of the major obstacles and challenges which is also discussed.
ER  -