Some Problems in the Design of High-Powered Transistor Amplifiers

Robbins A. Some Problems in the Design of High-Powered Transistor Amplifiers. In: AES Convention 14. Audio Engineering Society; 1962. Paper 231. Available from: https://aes.org/publications/elibrary-page/?id=717

@inproceedings{Robbins1962_717,
  author = {Robbins, Alex},
  title = {{Some Problems in the Design of High-Powered Transistor Amplifiers}},
  booktitle = {AES Convention 14},
  note = {Paper 231},
  year = {1962},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=717}
}

TY  - CPAPER
TI  - Some Problems in the Design of High-Powered Transistor Amplifiers
AU  - Robbins, Alex
T2  - AES Convention 14
M1  - Paper 231
PY  - 1962
DA  - 1962/10/06
UR  - https://aes.org/publications/elibrary-page/?id=717
PB  - Audio Engineering Society
LA  - en
AB  - Transistor power amplifiers in limited space are controlled by allowable heat dissipation. In typical class -B- amplifiers, theoretical efficiency can be as high as 78%. Maximum heat dissipation within the transistor occurs theoretically at 40% maximum power output, at which point the efficiency drops to 50%. : If the voltage at low power output can be reduced in accordance with demand, the amplifier could be operated continuously at peak efficiency. Means can be provided to vary the supply voltage in proportion to the output voltage required. Test results, using groups of listeners, show that it is possible to achieve excellent results without detectable distortion.
ER  -