A Simple Reliable Power Amplifier with Minimal Component Count

Vanderkooy J. A Simple Reliable Power Amplifier with Minimal Component Count. In: AES Convention 130. Audio Engineering Society; 2011. Paper 13. Available from: https://aes.org/publications/elibrary-page/?id=16571

@inproceedings{Vanderkooy2011_16571,
  author = {Vanderkooy, John},
  title = {{A Simple Reliable Power Amplifier with Minimal Component Count}},
  booktitle = {AES Convention 130},
  note = {Paper 13},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16571}
}

TY  - CPAPER
TI  - A Simple Reliable Power Amplifier with Minimal Component Count
AU  - Vanderkooy, John
T2  - AES Convention 130
M1  - Paper 13
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=16571
PB  - Audio Engineering Society
LA  - en
AB  - We study an audio power amplifier that has three essential active components: two power MOSFETS and one operational amplifier. Such an amplifier will be reliable because MOSFETS have good safe-operating area properties, and there are no small semiconductors that require high voltage ratings. The topology is that of an op-amp directly driving a grounded-source complementary class-B MOSFET output stage. The center-tapped power supply for such an amplifier is floating, so each channel must have a separate supply, and there must be a small ±15-volt supply for the op-amp as well. We discuss the design and study the amplifier with simulations and an experimental prototype. It achieves good performance.
ER  -