Simple Self-Oscillating Class D Amplifier with Full Output Filter Control

Putzeys B. Simple Self-Oscillating Class D Amplifier with Full Output Filter Control. In: AES Convention 118. Audio Engineering Society; 2005. Paper 6453. Available from: https://aes.org/publications/elibrary-page/?id=13169

@inproceedings{Putzeys2005_13169,
  author = {Putzeys, Bruno},
  title = {{Simple Self-Oscillating Class D Amplifier with Full Output Filter Control}},
  booktitle = {AES Convention 118},
  note = {Paper 6453},
  year = {2005},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13169}
}

TY  - CPAPER
TI  - Simple Self-Oscillating Class D Amplifier with Full Output Filter Control
AU  - Putzeys, Bruno
T2  - AES Convention 118
M1  - Paper 6453
PY  - 2005
DA  - 2005/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13169
PB  - Audio Engineering Society
LA  - en
AB  - A stable and load-invariant self-oscillation condition is developed for a class D amplifier employing only one single voltage feedback loop taking off after the output filter. The resulting control method is shown to effectively remove the output filter from the closed loop response. Practical discrete implementations of a comparator and gate-drive circuit are presented. A high-performance class D amplifier employing only 16 discrete transistors is constructed. Higher-order extensions of the control circuit are demonstrated which produce extremely low levels of distortion.
ER  -