Predistortion of a Bidirectional Cuk Audio Amplifier

Birch TH, Nielsen D, Knott A, Andersen MAE. Predistortion of a Bidirectional Cuk Audio Amplifier. In: AES Convention 137. Audio Engineering Society; 2014. Paper 9192. Available from: https://aes.org/publications/elibrary-page/?id=17515

@inproceedings{Birch2014_17515,
  author = {Birch, Thomas Haagen and Nielsen, Dennis and Knott, Arnold and Andersen, Michael A. E.},
  title = {{Predistortion of a Bidirectional Cuk Audio Amplifier}},
  booktitle = {AES Convention 137},
  note = {Paper 9192},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17515}
}

TY  - CPAPER
TI  - Predistortion of a Bidirectional Cuk Audio Amplifier
AU  - Birch, Thomas Haagen
AU  - Nielsen, Dennis
AU  - Knott, Arnold
AU  - Andersen, Michael A. E.
T2  - AES Convention 137
M1  - Paper 9192
PY  - 2014
DA  - 2014/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17515
PB  - Audio Engineering Society
LA  - en
AB  - Some non-linear amplifier topologies are capable of providing a larger voltage gain than one from a DC source, which could make them suitable for various applications. However, the non-linearities introduce a significant amount of harmonic distortion (THD). Some of this distortion could be reduced using predistortion. This paper suggests linearizing a nonlinear bidirectional Cuk audio amplifier using an analog predistortion approach. A prototype power stage was built and results show that a voltage gain of up to 9 dB and reduction in THD from 6% down to 3% was obtainable using this approach.
ER  -