Please use this identifier to cite or link to this item:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/32498| Title: | CMOS高效率D類音訊放大器 CMOS Highly-Efficient Class-D Audio Amplifier |
| Authors: | Ming-Jhe Du 杜明哲 |
| Advisor: | 郭斯彥 |
| Keyword: | D類,音訊, CMOS,Class D,Audio, |
| Publication Year : | 2006 |
| Degree: | 碩士 |
| Abstract: | A one-chip integrated circuit of a 2-W class-D audio power amplifier with very high efficiency using a CMOS technology is presented. Compared with traditional class-AB amplifiers that are very poor at efficiency, most below 50%, the proposed class-D amplifier has the efficiency of 90% at the smaller distortion level. The class-D amplifiers generate pulse-width-modulated (PWM) signals by comparing a triangle-wave with input-signals. An output stage with zero dead time and high efficiency is applied to improve the linearity and reduce wasted battery energy. An approach to reducing distortion is applied by using feedback calibration. |
| URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/32498 |
| Fulltext Rights: | 有償授權 |
| Appears in Collections: | 電子工程學研究所 |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| ntu-95-1.pdf Restricted Access | 803.77 kB | Adobe PDF |
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