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An integrated 3-level fully adjustable PWM class-D audio amplifier in 0.35um CMOS

Lindstrand, Jonas; Radjen, Dejan; Fitzgerald, Robert; Axholt, Andreas LU and Sjöland, Henrik LU (2008) Norchip Conference, 2008 In [Host publication title missing] p.168-171
Abstract
A Class-D audio amplifier utilizing a fully adjustable 3-level Pulse Width Modulation (PWM) is presented. The amplifier is fully integrated in a 0.35um CMOS process, and is powered by a 3.3V power supply. The system includes an internal fully adjustable triangle-wave oscillator, which is used to generate the PWM carrier. Delivering an output power of 300mW is a differential bridge (7.5cm pMOS, 3cm nMOS), driving a 16¿ load. The THD+N of the system is less than 0.2%, and the efficiency at 300mW is 89%.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
pages
168 - 171
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Norchip Conference, 2008
external identifiers
  • Scopus:62949195769
ISBN
978-1-4244-2492-4
DOI
10.1109/NORCHP.2008.4738304
language
English
LU publication?
yes
id
6d6dd610-c9b9-44f0-b44a-2e8d3af2c3a5 (old id 1289157)
date added to LUP
2009-02-03 10:21:54
date last changed
2016-10-13 04:46:51
@misc{6d6dd610-c9b9-44f0-b44a-2e8d3af2c3a5,
  abstract     = {A Class-D audio amplifier utilizing a fully adjustable 3-level Pulse Width Modulation (PWM) is presented. The amplifier is fully integrated in a 0.35um CMOS process, and is powered by a 3.3V power supply. The system includes an internal fully adjustable triangle-wave oscillator, which is used to generate the PWM carrier. Delivering an output power of 300mW is a differential bridge (7.5cm pMOS, 3cm nMOS), driving a 16¿ load. The THD+N of the system is less than 0.2%, and the efficiency at 300mW is 89%.},
  author       = {Lindstrand, Jonas and Radjen, Dejan and Fitzgerald, Robert and Axholt, Andreas and Sjöland, Henrik},
  isbn         = {978-1-4244-2492-4},
  language     = {eng},
  pages        = {168--171},
  publisher    = {ARRAY(0xa58aae0)},
  series       = {[Host publication title missing]},
  title        = {An integrated 3-level fully adjustable PWM class-D audio amplifier in 0.35um CMOS},
  url          = {http://dx.doi.org/10.1109/NORCHP.2008.4738304},
  year         = {2008},
}