標題: System analysis of an optimal noise shaped quantizer for audio-band digital amplifier
作者: Hu, Jwu-Sheng
Chen, Keng-Yuan
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2007
摘要: This paper reports a novel application of receding finite horizon constrained optimization techniques to design an audio-band full digital amplifier. The digital amplifier using power MOSFET requires a modulator to modulate the reference signal into binary sequences. The modulator can be viewed as an over-sampled quantizer with noise-shaping, requirement. One of the main issues in designing the modulator is to maintain stability while maximizing the ran-e of the reference input signal. The quantization scheme resulting front the optimization is derived in detail to arrive at the stability condition under zero initial conditions. It shows the stability condition becomes more stringent when the relative degree of the shaping filter is high. Simulations results are given to illustrate the effectiveness of the design methodology.
URI: http://hdl.handle.net/11536/6223
http://dx.doi.org/10.1109/IECON.2007.4460112
ISBN: 978-1-4244-0783-5
ISSN: 1553-572X
DOI: 10.1109/IECON.2007.4460112
期刊: IECON 2007: 33RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-3, CONFERENCE PROCEEDINGS
起始頁: 1950
結束頁: 1955
顯示於類別:會議論文


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