https://scholars.lib.ntu.edu.tw/handle/123456789/173889
標題: | 適用於xDSL 之信號驅動器 | 作者: | 李泰成 | 關鍵字: | xDSL line driver;self-oscillating power amplifier;SOPA | 公開日期: | 30-十一月-2004 | 出版社: | 臺北市:國立臺灣大學電子工程學研究所 | 摘要: | This report summarizes all experimental results of the project, including the system architecture and circuit design of the line driver for xDSL applications. The proposed architecture contains one comparator, one loop filter and a digital output buffer. The system is nonlinear and unstable, and a self-oscillating signal with a pre-designed frequency circulates around the loop. With a sine wave input, the self-oscillating signal becomes pulse-width modulated and therefore carries the input frequency information. By passing the signal through a low-pass filter, the input signal can be reconstructed. The circuit components, the comparator and output buffer, both have the feature of easy design with compared to the traditional class AB power amplifier. The full circuit design and simulation are done, and the chip is fabricated in a 0.35-um CMOS process to verify the line driver working principle. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/29240 | 其他識別: | 922622E002036CC3 | Rights: | 國立臺灣大學電子工程學研究所 |
顯示於: | 電子工程學研究所 |
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922622E002036CC3.pdf | 1 MB | Adobe PDF | 檢視/開啟 |
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