Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester

Petersen AS, Iversen NE, Knott A. Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester. In: AES Convention 149. Audio Engineering Society; 2020. Paper 10407. Available from: https://aes.org/publications/elibrary-page/?id=20944

@inproceedings{Petersen2020_20944,
  author = {Petersen, Andreas S. and Iversen, Niels E. and Knott, Arnold},
  title = {{Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester}},
  booktitle = {AES Convention 149},
  note = {Paper 10407},
  year = {2020},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20944}
}

TY  - CPAPER
TI  - Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester
AU  - Petersen, Andreas S.
AU  - Iversen, Niels E.
AU  - Knott, Arnold
T2  - AES Convention 149
M1  - Paper 10407
PY  - 2020
DA  - 2020/10/06
UR  - https://aes.org/publications/elibrary-page/?id=20944
PB  - Audio Engineering Society
LA  - en
AB  - Switch-mode power amplifiers have become the conventional choice for audio amplification due to their very high efficiency and negligible THD+N performance. This paper proposes a new method to determine the reverse recovery loss theoretically. The Spice model from the manufacture is simulated with a Double pulse tester in LTspice. Mapping the reverse recovery behaviour for different currents and time periods allows it to be fitted to a model. The fitted model is used to estimate the reverse recovery loss in a Class-D audio amplifier power stage. The conventional model shows a 16 times larger loss compared to the fitted model for a worst case comparison.
ER  -