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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 orcid (2008) Norchip Conference, 2008 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
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
[Host publication title missing]
pages
168 - 171
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
Norchip Conference, 2008
conference location
Talinn, Estonia
conference dates
2008-11-16 - 2008-11-17
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
2016-04-04 11:37:47
date last changed
2024-01-13 01:30:49
@inproceedings{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}},
  booktitle    = {{[Host publication title missing]}},
  isbn         = {{978-1-4244-2492-4}},
  language     = {{eng}},
  pages        = {{168--171}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  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}},
  doi          = {{10.1109/NORCHP.2008.4738304}},
  year         = {{2008}},
}