A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing

C. Mensink; E. van Tuijl; S. Gierkink; F. Mostert; Ronan A.R. van der Zee

doi:10.1109/VLSIC.2010.5560274

A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing

C. Mensink, E. van Tuijl, S. Gierkink, F. Mostert, Ronan A.R. van der Zee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

7 Downloads (Pure)

Abstract

A 4x45W (EIAJ) monolithic car audio power amplifier is presented that achieves a power dissipation decrease of nearly 2x over standard class AB operation by sharing load currents between loudspeakers. Output signals are conditioned using a common-mode control loop to allow switch placement between loads with minimal THD increase. A prototype is realized in a SOI bipolar-CMOS-DMOS process with 0.5μm feature size. Die area is 7.5x4.6mm2. THD+N @(1kHz,10W) is 0.05%.

Original language	English
Title of host publication	IEEE Symposium on VLSI Circuits, VLSIC 2010
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	61-62
Number of pages	2
ISBN (Electronic)	978-1-4244-5453-2
ISBN (Print)	978-1-4244-5454-9
DOIs	https://doi.org/10.1109/VLSIC.2010.5560274
Publication status	Published - 15 Jun 2010
Event	2010 IEEE Symposium on VLSI Circuits, VLSIC 2010 - Honolulu, United States Duration: 16 Jun 2010 → 18 Jun 2010

Publication series

Name	IEEE Symposium on VLSI Circuits (VLSIC)
Publisher	IEEE
Volume	2010
ISSN (Print)	2158-5601
ISSN (Electronic)	2158-5636

Conference

Conference	2010 IEEE Symposium on VLSI Circuits, VLSIC 2010
Abbreviated title	VLSIC
Country	United States
City	Honolulu
Period	16/06/10 → 18/06/10

Keywords

IR-75101
METIS-275756
class AB
Efficiency
EWI-19026
Audio power amplifier

Access to Document

10.1109/VLSIC.2010.5560274

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Cite this

Mensink, C., van Tuijl, E., Gierkink, S., Mostert, F., & van der Zee, R. A. R. (2010). A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing. In IEEE Symposium on VLSI Circuits, VLSIC 2010 (pp. 61-62). (IEEE Symposium on VLSI Circuits (VLSIC); Vol. 2010). Piscataway, NJ: IEEE. https://doi.org/10.1109/VLSIC.2010.5560274

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title = "A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing",

abstract = "A 4x45W (EIAJ) monolithic car audio power amplifier is presented that achieves a power dissipation decrease of nearly 2x over standard class AB operation by sharing load currents between loudspeakers. Output signals are conditioned using a common-mode control loop to allow switch placement between loads with minimal THD increase. A prototype is realized in a SOI bipolar-CMOS-DMOS process with 0.5μm feature size. Die area is 7.5x4.6mm2. THD+N @(1kHz,10W) is 0.05{\%}.",

keywords = "IR-75101, METIS-275756, class AB, Efficiency, EWI-19026, Audio power amplifier",

author = "C. Mensink and {van Tuijl}, E. and S. Gierkink and F. Mostert and {van der Zee}, {Ronan A.R.}",

year = "2010",

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Mensink, C, van Tuijl, E, Gierkink, S, Mostert, F & van der Zee, RAR 2010, A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing. in IEEE Symposium on VLSI Circuits, VLSIC 2010. IEEE Symposium on VLSI Circuits (VLSIC), vol. 2010, IEEE, Piscataway, NJ, pp. 61-62, 2010 IEEE Symposium on VLSI Circuits, VLSIC 2010, Honolulu, United States, 16/06/10. https://doi.org/10.1109/VLSIC.2010.5560274

A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing. / Mensink, C.; van Tuijl, E.; Gierkink, S.; Mostert, F.; van der Zee, Ronan A.R.

IEEE Symposium on VLSI Circuits, VLSIC 2010. Piscataway, NJ : IEEE, 2010. p. 61-62 (IEEE Symposium on VLSI Circuits (VLSIC); Vol. 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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