Comparison of Simple Self-Oscillating PWM Modulators

Dahl N, Iversen NE, Knott A, Andersen MAE. Comparison of Simple Self-Oscillating PWM Modulators. In: AES Convention 140. Audio Engineering Society; 2016. Paper 9562. Available from: https://aes.org/publications/elibrary-page/?id=18260

@inproceedings{Dahl2016_18260,
  author = {Dahl, Nicolai and Iversen, Niels Elkjær and Knott, Arnold and Andersen, Michael A. E.},
  title = {{Comparison of Simple Self-Oscillating PWM Modulators}},
  booktitle = {AES Convention 140},
  note = {Paper 9562},
  year = {2016},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18260}
}

TY  - CPAPER
TI  - Comparison of Simple Self-Oscillating PWM Modulators
AU  - Dahl, Nicolai
AU  - Iversen, Niels Elkjær
AU  - Knott, Arnold
AU  - Andersen, Michael A. E.
T2  - AES Convention 140
M1  - Paper 9562
PY  - 2016
DA  - 2016/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18260
PB  - Audio Engineering Society
LA  - en
AB  - Switch-mode power amplifiers has become the conventional choice for audio applications due to their superior efficiency and excellent audio performance. These amplifiers rely on high frequency modulation of the audio input. Conventional modulators use a fixed high frequency for modulation. Self-oscillating modulators do not have a fixed modulation frequency and can provide good audio performance with very simple circuitry. This paper proposes a new type of self-oscillating modulator. The proposed modulator is compared to an already existing modulator of similar type and their performances are compared both theoretically and experimentally. The result shows that the proposed modulator provides a higher degree of linearity resulting in around 2% lower Total Harmonic Distortion (THD).
ER  -