Reduction of Power Stage THD by Adding Output Capacitance

Abouchi N, Marguery P, Pillonnet G. Reduction of Power Stage THD by Adding Output Capacitance. In: AES Conference: 27th International Conference: Efficient Audio Power Amplification. Audio Engineering Society; 2005. Paper 4-2. Available from: https://aes.org/publications/elibrary-page/?id=13272

@inproceedings{Abouchi2005_13272,
  author = {Abouchi, Nacer and Marguery, Philippe and Pillonnet, Gaël},
  title = {{Reduction of Power Stage THD by Adding Output Capacitance}},
  booktitle = {AES Conference: 27th International Conference: Efficient Audio Power Amplification},
  note = {Paper 4-2},
  year = {2005},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13272}
}

TY  - CPAPER
TI  - Reduction of Power Stage THD by Adding Output Capacitance
AU  - Abouchi, Nacer
AU  - Marguery, Philippe
AU  - Pillonnet, Gaël
T2  - AES Conference: 27th International Conference: Efficient Audio Power Amplification
M1  - Paper 4-2
PY  - 2005
DA  - 2005/09/06
UR  - https://aes.org/publications/elibrary-page/?id=13272
PB  - Audio Engineering Society
LA  - en
AB  - Audio class D converter has nonlinear distortion provided by power stage. In fact, the PWM inverter is influenced by the switching dead time introduced by power output control system. If output capacitance is added, the audio quality is improved. In this paper, the interaction between the dead time effect and the output stage capacitance is investigated. At first, each effect is investigated separately. Then, the sum of the effects is analysed to predict the improvement of audio quality. Finally, the calculated results are compared with low level simulation in order to confirm the validity of the analysis.
ER  -