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 |