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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28352

Title: A 3.3V/0.7W 90% Efficiency Class-D Audio Power Amplifier
Authors: W.R. Liou;W.C. Huang;M.L. Yeh;Y.L. Kuo
Contributors: NTOU:Department of Electrical Engineering
國立臺灣海洋大學:電機工程學系
Keywords: Calss-D Audio Power amplifier;Calss-AB amplifier
Date: 2005-08
Issue Date: 2011-10-21T02:37:14Z
Publisher: The 2005 VLSI Design/CAD Symposium
Abstract: Abstract:A single-chip high-efficiency 3.3V/0.7W class- D audio power amplifier is presented in this paper. Pulsedwidth- modulated technique with bridge tied load is used in this class-D amplifier design. Compared with traditional lowefficiency class-AB amplifiers, this class-D amplifier has the efficiency of 91%. A 4 Ω load is used for amplifier design. The lowest total harmonic distortion is 0.64% when a 250 KHz triangle wave is used. The efficiency will increase when output power is increased. TSMC CMOS 3.3 V/0.35um process is used for this amplifier design.
URI: http://ntour.ntou.edu.tw/handle/987654321/28352
Appears in Collections:[電機工程學系] 演講及研討會

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