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研究生:聶蔚霆
研究生(外文):Wei-Ting Nie
論文名稱:以嵌入式系統為基礎的快速訊號頻率量測
論文名稱(外文):Fast signal frequency measurement based on embedded system
指導教授:侯安桑
指導教授(外文):An-Sang Hou
學位類別:碩士
校院名稱:南台科技大學
系所名稱:電子工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
中文關鍵詞:頻率至電壓轉換器嵌入式系統D/A轉換器
外文關鍵詞:frequency-to-voltageembedded systemD/A converter
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本論文使用高等精簡指令集計算機器(Advanced RISC Machine,簡稱ARM)來設計一個快速輸入訊號頻率即時量測的系統,它能夠將輸入頻率的值以數位值讀出並且具備高準確性及即時轉換。本系統還包括了自行設計的邏輯控制電路、準位調整器、積分電路、單擊、類比/數位轉換器。為了提高量測的準確度,此系統利用一個精準的參考頻率,在兩個參考頻率週期內將輸入訊號頻率量測出來。在本論文中對整個電路的時序作詳盡的分析與理論的推演,也設計了ARM9的驅動程式與應用程式,以便驗證所推演的理論。使用自動校正與快速查表的方法,大幅降低了零件值不準確與偏移電壓所造成的誤差,也克服頻率對電壓轉換的非線性問題。本文所提出的方法及實作,適用於嵌入式系統作即時量測與控制。
A new methodology to design a real-time fast input signal measurement system for advanced RISC machine (ARM) is proposed in this thesis. This system can convert the input signal frequency into digital signal output with high accuracy and real-time conversion characteristic. The proposed system also includes an interface circuit, control logics, a level shifter, an integrated circuit, one-shot and an A/D converter. A precision reference clock is employed to raise the measurement accuracy. The input signal frequency can be measured within two cycles of the precision reference clock. In this thesis, the circuit timing is analyzed and the theory is derived in detail. The driver and application programs of ARM9 are designed to verify the derived theory. The auto-calibration and table look-up methods are proposed to reduce greatly the error caused by component uncertainty and offset voltage, and overcome the nonlinear problem of frequency-to-voltage conversion. The proposed method and realization can be applied to real-time measurement and control using embedded system.
摘要
誌謝
目次
表目錄
圖目錄
第一章緒論
第二章系統架構分析
2.1控制邏輯電路分析
2.2積分電路分析
2.3實體電路
第三章穩態積分電壓推導與誤差校正
3.1穩態積分電壓推導
3.2消除偏移電壓和寄生電容
3.3輸入訊號頻率的限制
第四章程式分析
4.1驅動程式
4.2應用程式
4.2.1主程式部份
4.2.2產生數位值與對應積分電壓的轉換表
4.2.3將數位值轉換成對應的量測輸入訊號頻率
4.2.4求得偏移電壓與電阻電容常數
4.2.5求得最小量測頻率
第五章測試步驟與實驗結果
5.1校正16位元A/D轉換器
5.2決定系統參數值和計算輸入頻率
5.3校正準位調整器
5.4電阻電容常數的量測
5.5量測分析與波型的驗証
結論
參考文獻
[1]Thomas L. Floyd and David Buchla, “Basic operational amplifiers and linear integrated circuits”, Prentice-Hall, Inc., pp.450-457, 1999.
[2]Alain B. Grebene, “Bipolar and MOS analog integrated circuits design”, John Wiley, 1983.
[3]A. S. Maha et al., “A dual slop based digital frequency meter”, International Journal of Electronics, 57, pp.557-562, 1984.
[4]S. Wanlop, C. Yongyut and B. Suree, “An analog sinusoidal frequency-to-voltage converter”, IEEE Transactions on Instrumentation and Measurement, 40, pp.925-929, 1991.
[5]A. Djemouai, M. Sawan and M. Slamani, “High performance integrated CMOS frequency-to-voltage converter”, Tenth International Conference on Microelectronics , 1998, pp.63-66.
[6]Chin E. Lin and An Sang Hou, “Design of Frequency-to-Voltage Converter Using Successive-Approximation”, IEEE Instrumentation and Measurement Technology Conference, 2003, pp.1438-1443.
[7]A.Djemouai, M. Sawan and M.Slamani, “A 200 MHz frequency-locked loop based on new frequency-to-voltage converters approach”, IEEE International Symposium on Circuits and Systems, 1999, pp.89-92.
[8]Hung Tien Bui, Yvon Savaria, “High-speed differential frequency-to-voltage converter”, IEEE-NEWCAS Conference, 2005, pp.373-376.
[9]A. Djemouai, M. Sawan and M. Slamani, “New circuit techniques based on a high performance frequency-to-voltage converter”, IEEE International Conference on Electronics, Circuits and Systems, 1999, pp.13-16.
[10]Dantas, F.D. and Canesin, C.A., “A novel high frequency ac voltage regulator with active power factor correction”, IEEE International Symposium Industrial Electronics, 2003, pp.275-279.
[11]Dowlatabadi, A.B. and Connelly, J.A., “Macromodeling an analog frequency-to-voltage converter”, Midwest Symposium on Circuits and Systems, 1992, pp.421-424.
[12]Magklis, G., Semeraro, G., Albonesi, D.H., Dropsho, S.G., Dwarkadas, S. and Scott, M.L., “Dynamic frequency and voltage scaling for a multiple-clock-domain microprocessor”, Micro, IEEE, pp.62-68, 2003.
[13]Ribickis, L., Liepins, M., Rutmanis, L. and Stabulnieks, J., ”New solutions for direct frequency converter as voltage regulator”, International Conference on Industrial Electronics, Control and Instrumentation, 1994, pp.338-343.
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