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研究生： 黃興生
Hsing-Sheng Huang
論文名稱： 光碟機尋軌與主軸伺服控制晶片之設計與實作
The Design and Implementation of a Seeking and Spindle Servo Control Chip for the Optical Disk Drive
指導教授： 陳建祥
Jian-Shiang Chen
口試委員:
學位類別： 碩士
Master
系所名稱： 工學院 - 動力機械工程學系
Department of Power Mechanical Engineering
論文出版年： 2002
畢業學年度： 90
語文別： 英文
論文頁數： 78
中文關鍵詞： 光碟機 、伺服 、尋軌 、主軸
外文關鍵詞： DVD, servo, seek, spindle, CPLD
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    • 光碟機產業乃為現今電腦周邊儲存媒體中相當熱門的產業之一，而本論文主題即在進行光碟機尋軌與主軸伺服控制晶片之設計。
    在本實驗中，利用美商Altera公司所生產之APEX20K複雜式可程式化邏輯晶片來模擬光碟機機台中原有之伺服晶片。並將短程尋軌、長程尋軌、主軸馬達等三項伺服系統以階層式模組建構於APEX20K中並配合DVD實驗平台加以驗證。

    本論文已達成取代其原有之跨軌伺服系統及主軸馬達伺服系統，在長程尋軌中並藉由二次元規劃之理論方法建構一合適之速度曲線以降低搜尋時間，而在等線速度模式下，主軸馬達轉速之變化亦配合自行設計之長跳軌功能進行整合測試完成，成功達成等線速度之主軸馬達伺服控制。

    In this thesis, a CPLD-based servo controller for a DVD-player is implemented and verified through experiments.
    Long-seek servo for moving pickup head at long distance, short-seek for precise positioning of the pickup head and spindle servo for rotating disks are implemented in a CPLD. In test bench, these three servo blocks are realized as CPLD modules for further experimental validity.

    In long-seek servo, response of 10,000 tracks jump is performed with a suitable electronic damper and velocity profile, while in short-seek servo, the precise positioning is performed and the prescribed velocity profile is followed. In spindle servo at CLV mode, data PLL and spindle PLL are performed in accordance with the long-seeking module. The variation of rotational speed is also presented for verification.

    中文摘要 I Abstract II 致謝辭 III Contents IV Lists of Figures VII Lists of Tables IX Chapter 1 Introduction 1 1.1 Background 1 1.2 Motivations 3 1.3 Literature Survey 6 1.4 Organization of the Thesis 8 Chapter 2 The Optical Disk Servo Drive System 9 2.1 Servo Control Systems in a DVD Drive 9 A. Focusing Servo System 12 B. Tracking Servo System 12 C. Seeking Servo System 13 D. Spindle Motor Servo System 13 2.2 Spindle Servo Control System in a DVD Drive 14 A. Data Slicer 16 B. Data Phase-Locked Loop 17 C. Spindle Phase-Locked Loop 18 2.3 Long-Seek Servo Control System in a DVD Drive 18 A. Block Diagram of Long-Seek Servo Control System 19 B. Dual-stage Actuators 20 2.4 Short-Seek Servo Control System in a DVD Drive 23 A. Block Diagram of Long-Seek Servo Control System 23 B. Parallel Phase-Lead Phase-lag Controller with Multi-Sampling-Rate 24 Chapter 3 The Experimental Setup 27 3.1 The Test Bench 28 A. Mechanisms 29 B. PCBA 29 C. Introduction of the CPLD 30 3.2 The Interface Circuits 30 A. 8255 Input/Output Interface Cards 30 B. Feedback Signal from Servo Chip 31 C. Low-Pass Filter for Control Effort 32 D. Data Slicer 32 3.3 Spindle Servo Module 33 A. Data Slicer 34 B. Data PLL 35 C. Spindle PLL 39 3.4 Long-Seek Servo Modules 40 A. Track Jump Counter 41 B. Velocity Estimator 44 C. Velocity Profile 44 D. Electronic Damper 45 E. Control Effort Generator 47 3.5 Short-Seek Servo Modules 48 A. Track Jump Counter 49 B. Velocity estimator 49 C. Velocity Profile 50 D. Controller 52 Chapter 4 Experimental Results 57 4.1 Experimental Results of Long-Seek Servo System 57 4.2 Experimental Results of Short-Seek Servo System 62 4.3 Experimental Results of Spindle Servo System 64 4.4 Discussion of Experimental Results 69 Chapter 5 Summary and Recommendations 71 5.1 Summary and Contribution of the Thesis 71 5.2 Recommendations for Future Study 72 References 73 Appendix A-1 Introduction of QuartusII 74 Appendix A-2 Introduction of APEX20K 75 Appendix B-1 TRO from D/A Converter 76 Appendix B-2 FMO and DMO from 3rd Low-Pass Filters 77 Appendix B-3 Circuits for Data Slicer 78

    [1] Chien-Fong Lin, Design and Implementation of a Servo Control Chip for CD-ROM, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 1999.
    [2] Chin-Shou Huang, On the Seek-Servo Controller Parameter Optimization of an Optical Disk Drive, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 2000.
    [3] Shin-Po Wang, Design and Implementation of a Spindle Servo Control Chip for CD-ROM, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 2000.
    [4] Ming-Hung Huang, The Modular Design and Implementation of a Servo Control Chip, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 1999.
    [5] Jian-Ming Huang, Design and Implementation of a Short-Seek Servo Chip for CD-ROM, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 2001.
    [6] Chang-Hui Liu, Design and Implementation of the Time-Optimal Trajectory for a Seek-Servo of Optical Disk Drive, Master’s Thesis, Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan, 2001.
    [7] 黃仁宏, 光碟機跨軌漏數偵測與粗調伺服系統之研究, Master’s Thesis, Department of Electric and Control Engineering, National Chiao Tung University, Taiwan, 1998.
    [8] CD-ROM Learning Kit, Key Technology, 1998.
    [9] Gene F. Franklin, J. David Powell and Abbas Emami-Naeini, Feedback Control of Dynamic Systems, 3rd, Addision Wesley, CA, USA, 1994.
    [10] Quartus ver1.01 Data Sheet, Altera, 1999.
    [11] Altera EP20K/E BGA652研發電路板使用手冊, 茂綸公司, 2001.
    [12] 陳榮順, 鎖相迴路控制模擬與分析，工研院機械所技術報告，1994.

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