Determination of over current protection thresholds for class D audio amplifiers
(2005) p.125-128- Abstract
- Monolithic class-D audio amplifiers typically feature built-in over current protection circuitry that shuts down the amplifier in case of a short circuit on the output speaker terminals. To minimize cost, the threshold at which the device shuts down must be set just above the maximum current that can flow in the loudspeaker during normal operation. The current required is determined by the complex loudspeaker impedance and properties of the music signals played. This work presents a statistical analysis of peak output currents when playing music on typical loudspeakers for home entertainment.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1051231
- author
- Nyboe, Flemming ; Risbo, Lars and Andreani, Pietro LU
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 23rd NORCHIP Conference, 2005.
- pages
- 125 - 128
- external identifiers
-
- scopus:33847215450
- ISBN
- 1-4244-0064-3
- DOI
- 10.1109/NORCHP.2005.1597005
- language
- English
- LU publication?
- no
- id
- 9a6087f5-721e-4312-bd32-e349916720a2 (old id 1051231)
- alternative location
- http://ieeexplore.ieee.org/iel5/10643/33584/01597005.pdf?tp=&arnumber=1597005&isnumber=33584
- date added to LUP
- 2016-04-04 14:38:07
- date last changed
- 2022-01-30 02:22:32
@inproceedings{9a6087f5-721e-4312-bd32-e349916720a2,
abstract = {{Monolithic class-D audio amplifiers typically feature built-in over current protection circuitry that shuts down the amplifier in case of a short circuit on the output speaker terminals. To minimize cost, the threshold at which the device shuts down must be set just above the maximum current that can flow in the loudspeaker during normal operation. The current required is determined by the complex loudspeaker impedance and properties of the music signals played. This work presents a statistical analysis of peak output currents when playing music on typical loudspeakers for home entertainment.}},
author = {{Nyboe, Flemming and Risbo, Lars and Andreani, Pietro}},
booktitle = {{23rd NORCHIP Conference, 2005.}},
isbn = {{1-4244-0064-3}},
language = {{eng}},
pages = {{125--128}},
title = {{Determination of over current protection thresholds for class D audio amplifiers}},
url = {{http://dx.doi.org/10.1109/NORCHP.2005.1597005}},
doi = {{10.1109/NORCHP.2005.1597005}},
year = {{2005}},
}