Analysis of Two-Pole Compensation in Linear Audio Amplifiers

Dymond H, Mellor P. Analysis of Two-Pole Compensation in Linear Audio Amplifiers. In: AES Convention 129. Audio Engineering Society; 2010.pp. 8195:1-11. Available from: https://aes.org/publications/elibrary-page/?id=15617

@inproceedings{Dymond2010_15617,
  author = {Dymond, Harry and Mellor, Phil},
  title = {{Analysis of Two-Pole Compensation in Linear Audio Amplifiers}},
  booktitle = {AES Convention 129},
  pages = {8195:1-11},
  url = {https://aes.org/publications/elibrary-page/?id=15617},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society}
}

TY  - CPAPER
TI  - Analysis of Two-Pole Compensation in Linear Audio Amplifiers
AU  - Dymond, Harry
AU  - Mellor, Phil
T2  - AES Convention 129
SP  - 1
EP  - 11
M1  - Paper 8195
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15617
PB  - Audio Engineering Society
LA  - en
AB  - An analysis of the two-pole compensation technique used in three-stage linear audio amplifiers is presented. An expression for the loop gain of a linear amplifier incorporating two-pole compensation is derived, allowing the designer to easily select the unity loop gain frequency and zero location by choosing appropriate values for the compensation components. Also presented is a simulation method that allows the designer to observe an amplifier’s closed-loop and loop gain responses in a single pass without requiring modification to the circuit’s feedback path; and two separate modifications to the usual two-pole compensation approach which improve phase margin and significantly enhance negative-rail power-supply rejection ratio.
ER  -