A High-Efficiency Audio Power Amplifier

Nakagaki H, Amada N, Inoue S. A High-Efficiency Audio Power Amplifier. J Audio Eng Soc. 1983;31(6):430-436. Available from: https://aes.org/publications/elibrary-page/?id=4571

@article{Nakagaki1983_4571,
  author = {Nakagaki, Harushige and Amada, Nobutaka and Inoue, Shigeki},
  title = {{A High-Efficiency Audio Power Amplifier}},
  journal = {Journal of the Audio Engineering Society},
  volume = {31},
  number = {6},
  pages = {430--436},
  year = {1983},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=4571}
}

TY  - JOUR
TI  - A High-Efficiency Audio Power Amplifier
AU  - Nakagaki, Harushige
AU  - Amada, Nobutaka
AU  - Inoue, Shigeki
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 31
IS  - 6
SP  - 430
EP  - 436
PY  - 1983
DA  - 1983/06/06
UR  - https://aes.org/publications/elibrary-page/?id=4571
PB  - Audio Engineering Society
LA  - en
AB  - A compact audio amplifier with high power and low distortion has been developed. The supply voltage for the class-B output stage of the amplifier is varied with the input signal so that the voltage applied to the active output transistor is held small and constant, appreciably reducing transistor dissipation. Total power dissipation is reduced to one-half that of the conventional class-B amplifier, the size of the heat sink to one-fifth, and overall weight to one-quarter. The amplifier is efficient, shows a distortion of 0.01% at 20-kHz maximum output, and a signal-to-noise ratio of 110 dB (IHF-A network).
ER  -