Overheat Protection Circuits for Moving-Coil Loudspeakers

Penkov G, Valtchev P. Overheat Protection Circuits for Moving-Coil Loudspeakers. In: AES Convention 90. Audio Engineering Society; 1991. Paper 3036. Available from: https://aes.org/publications/elibrary-page/?id=5657

@inproceedings{Penkov1991_5657,
  author = {Penkov, Georgi and Valtchev, Plamen},
  title = {{Overheat Protection Circuits for Moving-Coil Loudspeakers}},
  booktitle = {AES Convention 90},
  note = {Paper 3036},
  year = {1991},
  month = feb,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5657}
}

TY  - CPAPER
TI  - Overheat Protection Circuits for Moving-Coil Loudspeakers
AU  - Penkov, Georgi
AU  - Valtchev, Plamen
T2  - AES Convention 90
M1  - Paper 3036
PY  - 1991
DA  - 1991/02/06
UR  - https://aes.org/publications/elibrary-page/?id=5657
PB  - Audio Engineering Society
LA  - en
AB  - Voice-coil overheating is a main reason for loudspeaker damage and failure. It is shown that the voice-coil temperature depends linearly on the so called -moving power.- Knowing the basic thermal parameters of a moving-coil loudspeaker, its isothermal diagram can be determined in a Power-Time domain, defining the -Safe Operating Area- of the loudspeaker. It is clear that the protection circuit should maintain the input signal level within the safe Power-Time limit. The effectiveness of existing protection circuits have been estimated, and some new protection circuits for active and passive loudspeakers, are presented.
ER  -