High Frequency—Ultra Audio Band Mode Voice Coil Temperature Measurement

Anazawa IG. High Frequency—Ultra Audio Band Mode Voice Coil Temperature Measurement. In: AES Convention 142. Audio Engineering Society; 2017.pp. 320:1-. Available from: https://aes.org/publications/elibrary-page/?id=18695

@inproceedings{Anazawa2017_18695,
  author = {Anazawa, Isao G.},
  title = {{High Frequency—Ultra Audio Band Mode Voice Coil Temperature Measurement}},
  booktitle = {AES Convention 142},
  pages = {320:1-},
  year = {2017},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18695}
}

TY  - CPAPER
TI  - High Frequency—Ultra Audio Band Mode Voice Coil Temperature Measurement
AU  - Anazawa, Isao G.
T2  - AES Convention 142
SP  - 1
M1  - Paper 320
PY  - 2017
DA  - 2017/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18695
PB  - Audio Engineering Society
LA  - en
AB  - As the power driving mobile devices loudspeaker increases for a better audio experience, an accurate measurement of the voice coil temperature becomes necessary in order to protect the loudspeaker from over-heating. Electrical solutions have been developed in the past to measure the temperature indirectly from the voice coil resistance using a low frequency probe tone or using main audio contents. This paper explains an ultra-audio band high frequency probe to measure the resistance. The test results show good accuracy without the known side effects that exist with current methods.
ER  -