Harmonic distortion reduction in multi-level PWM modulators for audio power amplifiers

IECON Proceedings (Industrial Electronics Conference)

Volumn 1, Issue , 2002, Pages 852-857

  Antunes, Victor M E ^a   Pires, V Fernão ^a   Silva, José Fernando ^b  

^a INSTITUTO POLITÉCNICO DE SETÚBAL   (Portugal)

^b INSTITUTO SUPERIOR TÉCNICO   (Portugal)

Author keywords

[No Author keywords available]

Indexed keywords

AUDIO POWER AMPLIFIERS; HARMONIC DISTORTION REDUCTION; NOISE SHAPING TECHNIQUES; PULSE WIDTH MODULATION MODULATORS;

ACOUSTIC DISTORTION; ALGORITHMS; AUDIO FREQUENCY AMPLIFIERS; COMPACT DISKS; COMPUTER SIMULATION; ELECTRIC SWITCHES; HARMONIC DISTORTION; POWER AMPLIFIERS; PULSE WIDTH MODULATION; SEMICONDUCTOR DEVICES; SIGNAL FILTERING AND PREDICTION; SIGNAL TO NOISE RATIO;

MODULATORS;

EID: 0036957498     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/IECON.2002.1187619     Document Type: Conference Paper

References (6)

1. Goldberg J.M., Sandler M.B.: "New high accuracy pulse width modulation based digital-to-analogue convertor/power amplifier", IEE Proc.-Circuits Devices Syst., Vol. 141, No 4, August 1994, pp. 315-324
2. Zukui Song, Dilip V. Sarwate, "Spectral Distortion for Uniform Sampling Pulse Width Modulation" in Proceedings of the 2000 Conference in Information Sciences and Systems, Princeton University, March 15-17, 2000.
3. Morten Johansen and Karsten Nielsen, "A Review and Comparison of Digital PWM Methods for Digital Pulse Modulation Amplifier (PMA)", AES, 107th Convention, NY, Set., 1999, preprint 5039.
4. Erik Bresch and Wayne T. Padgett, "TMS320C67-Based Design of a Digital Audio Power Amplifier Introducing Novel Feedback Strategy", internet: http://www.mathworks.com/products/dsp_comm/pdfs/hbreschpadgett.pdf, 2002/04/25
5. A. Grosso, E. Botti, F. Stefani and M. Ghioni; "A 250W Audio Amplifier with Straightforward Digital Input - PWM Output conversion", internet: www.eurotraining.net/ESSCIRC2001/esscirc2001/data/62.pdf, 04/03/2002
6. Lai, J-S.; Peng, Z. F., Multilevel Converters-A new breed of power converters, IEEE Transactions on Industry Applications, Vol. 32, no. 3, May/June 1996, pp. 509-517