Real-Time Power Supply Feedback Reduces Power Conversion Requirements For Digital Class D Amplifiers
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R. Boudreaux, "Real-Time Power Supply Feedback Reduces Power Conversion Requirements For Digital Class D Amplifiers," Paper 3-2, (2005 September.). doi:
R. Boudreaux, "Real-Time Power Supply Feedback Reduces Power Conversion Requirements For Digital Class D Amplifiers," Paper 3-2, (2005 September.). doi:
Abstract: The development of real-time power supply feedback for an all-digital Class D PWM amplifier enables the use of many different power conversion techniques allowing a greater number of alternatives to meet system demand requirements. With a typical voltage ripple rejection of 40dB at 60Hz, an all-digital PWM amplifier with this PSR compensation can achieve better than 105dB system dynamic range and a total harmonic distortion plus noise measurement of 0.1%. The system performance of the real-time PSR feedback is discussed and evaluated for a half-bridge and full-bridge amplifier output stage powered from a low cost unregulated linear power supply.
@article{boudreaux2005real-time,
author={boudreaux, randy},
journal={journal of the audio engineering society},
title={real-time power supply feedback reduces power conversion requirements for digital class d amplifiers},
year={2005},
volume={},
number={},
pages={},
doi={},
month={september},}
@article{boudreaux2005real-time,
author={boudreaux, randy},
journal={journal of the audio engineering society},
title={real-time power supply feedback reduces power conversion requirements for digital class d amplifiers},
year={2005},
volume={},
number={},
pages={},
doi={},
month={september},
abstract={the development of real-time power supply feedback for an all-digital class d pwm amplifier enables the use of many different power conversion techniques allowing a greater number of alternatives to meet system demand requirements. with a typical voltage ripple rejection of 40db at 60hz, an all-digital pwm amplifier with this psr compensation can achieve better than 105db system dynamic range and a total harmonic distortion plus noise measurement of 0.1%. the system performance of the real-time psr feedback is discussed and evaluated for a half-bridge and full-bridge amplifier output stage powered from a low cost unregulated linear power supply. },}
TY - paper
TI - Real-Time Power Supply Feedback Reduces Power Conversion Requirements For Digital Class D Amplifiers
SP -
EP -
AU - Boudreaux, Randy
PY - 2005
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - September 2005
TY - paper
TI - Real-Time Power Supply Feedback Reduces Power Conversion Requirements For Digital Class D Amplifiers
SP -
EP -
AU - Boudreaux, Randy
PY - 2005
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - September 2005
AB - The development of real-time power supply feedback for an all-digital Class D PWM amplifier enables the use of many different power conversion techniques allowing a greater number of alternatives to meet system demand requirements. With a typical voltage ripple rejection of 40dB at 60Hz, an all-digital PWM amplifier with this PSR compensation can achieve better than 105dB system dynamic range and a total harmonic distortion plus noise measurement of 0.1%. The system performance of the real-time PSR feedback is discussed and evaluated for a half-bridge and full-bridge amplifier output stage powered from a low cost unregulated linear power supply.
The development of real-time power supply feedback for an all-digital Class D PWM amplifier enables the use of many different power conversion techniques allowing a greater number of alternatives to meet system demand requirements. With a typical voltage ripple rejection of 40dB at 60Hz, an all-digital PWM amplifier with this PSR compensation can achieve better than 105dB system dynamic range and a total harmonic distortion plus noise measurement of 0.1%. The system performance of the real-time PSR feedback is discussed and evaluated for a half-bridge and full-bridge amplifier output stage powered from a low cost unregulated linear power supply.
Author:
Boudreaux, Randy
Affiliation:
Cirrus Logic, Inc.
AES Conference:
27th International Conference: Efficient Audio Power Amplification (September 2005)
Paper Number:
3-2
Publication Date:
September 1, 2005Import into BibTeX
Subject:
Efficient Audio Power Amplification
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=13271