Signal Level and Frequency Dependant Losses Inside Audio Signal Transformers and How to Prevent Those

van der Veen M. Signal Level and Frequency Dependant Losses Inside Audio Signal Transformers and How to Prevent Those. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8360. Available from: https://aes.org/publications/elibrary-page/?id=15827

@inproceedings{vanderVeen2011_15827,
  author = {van der Veen, Menno},
  title = {{Signal Level and Frequency Dependant Losses Inside Audio Signal Transformers and How to Prevent Those}},
  booktitle = {AES Convention 130},
  note = {Paper 8360},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15827}
}

TY  - CPAPER
TI  - Signal Level and Frequency Dependant Losses Inside Audio Signal Transformers and How to Prevent Those
AU  - van der Veen, Menno
T2  - AES Convention 130
M1  - Paper 8360
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15827
PB  - Audio Engineering Society
LA  - en
AB  - In earlier work (paper 7125) a model was presented which explains that low level voltage audio signals are extra weakened when they are fed through a transformer. This extra weakening is caused by the signal level and frequency dependant inductance of the transformer. Combining measurements and calculations with the threshold of hearing curves, showed that noticeable loss of micro details occurs in the frequency band from 20 Hz to 1 kHz. This paper expands the previous work with measurements on several valve amplifiers, refines the model and makes it applicable to macro signal levels close to saturation of the transformer. Also methods are given to minimize this extra weakening in transformers.
ER  -