The Autobias Amplifier: A New Topology for Automatically Biased Audio Amplifiers Using Power MOSFETs

Roehr B. The Autobias Amplifier: A New Topology for Automatically Biased Audio Amplifiers Using Power MOSFETs. J Audio Eng Soc. 1982;30(4):208-216. Available from: https://aes.org/publications/elibrary-page/?id=3847

@article{Roehr1982_3847,
  author = {Roehr, Bill},
  title = {{The Autobias Amplifier: A New Topology for Automatically Biased Audio Amplifiers Using Power MOSFETs}},
  journal = {Journal of the Audio Engineering Society},
  volume = {30},
  number = {4},
  pages = {208--216},
  year = {1982},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3847}
}

TY  - JOUR
TI  - The Autobias Amplifier: A New Topology for Automatically Biased Audio Amplifiers Using Power MOSFETs
AU  - Roehr, Bill
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 30
IS  - 4
SP  - 208
EP  - 216
PY  - 1982
DA  - 1982/04/06
UR  - https://aes.org/publications/elibrary-page/?id=3847
PB  - Audio Engineering Society
LA  - en
AB  - An obstacle blocking wide acceptance of power MOSFETs in audio amplifiers is the lack of an automatic bias technique. A unique circuit topology senses and maintains quiescent current despite the half-wave pulses inherent in class AB operation. Performance of the circuit, consisting of little more than a different amplifier driving a totem-pole output stage, rivals that of more complex circuits.
ER  -