複金屬燈具高光效、高顯色性、使用壽命長等良好的發光特性，使其在現今照明市場佔有越來越多的份量。然而，欲驅動複金屬燈需要電子安定器執行燈管由啟動暫態到穩態之特定控制，以順利點亮燈具及延長燈管壽命。本文旨在設計一全數位式複金屬燈電子安定器，利用現有商品化之數位信號控制器實現燈管完整之點燈流程，可以簡易地達到定功率控制，延長燈管之使用壽命，同時可以精簡電路複雜度及提高其可靠度。 基本上，本論文的主要貢獻可歸納成以下三點：第一點，採用單一數位信號控制器，即dsPIC30F4011，之全數位化控制，可達到簡化電路、減少元件使用數量以及系統操作穩定的目的。數位信號控制器整合類比數位轉換模組、輸出比較模組、馬達控制脈波寬度調變模組、計時器與中斷功能模組等多樣的周邊模組功能，將整個系統之回授信號處理與控制信號輸出皆包含在數位信號控制器中，使得外部電路複雜度大幅地降低。另外，複金屬燈電子安定器之點火電路係採用諧振的方式來產生點燈之高壓。此方法在數位控制的方式下可提高點火電路操作之穩定度，相較於傳統脈衝高壓點燈之方式，諧振點燈具有使用元件精簡、燈管點燈成功率較佳的優點。第二點，針對燈管使用壽命之提升，當複金屬燈操作達穩態時，採定功率控制。由於燈管老化過程中其等效阻抗會產生大幅度變化，因此藉由使用數位信號控制器可以很容易精確地達到定功率效果，提升燈管使用之壽命。第三點，採用MICROCHIP公司所研發之數位信號控制器(DSC)，其型號為dsPIC30F4011，規畫及實現複金屬燈電子安定器之點燈時序與流程控制，並實際製作一驅動70W複金屬燈之電子安定器以驗證該全數位化電子式安定器的效能。

The metal halide lamps (MHL) are widely used in many lighting applications due to their attracting properties such as high luminous efficiency, good color rendering, and long life time. However, for proper operation, an electronic ballast is required for driving the MHLs from starting up to steady state. In order to enhance the performance and extend the life time of MHLs, fully digital implementation and constant power control are two important factors considered for future development. Hence, in this thesis, the major objective is to choose a low cost commercial digital signal controller (DSC) to implement a fully digital electronic ballast and achieve a more accurate constant power control for gaining longer life time for MHLs.
Basically, the contributions of this thesis can be summarized as follows. First, a single digital signal controller (DSC), namely, dsPIC30F4011, is chosen to accomplish fully digital control and simplify the circuit. The digital signal controller is used to deal with both feedback signal processing and control signal output together with combining multiple peripheral module functions, such as High Speed Analog to Digital Converter (A/D) Module, Output Compare Module, Motor Control PWM Module, and the Timer Module with interrupt function. As a result, it can simplify greatly the complexity of the whole ballast circuit. Also, a resonant ignition technology is adopted in this thesis. Compared with the traditional pulse ignition starting, resonant ignition method has the advantage of having fewer elements and more possibility of successful ignition. Second, in order to extend the life time of lamps, a constant power control is also implemented. By using the proposed digital signal controller, the resulting electronic ballast can achieve much more accurate constant power control in spite of large variation of the equivalent resistance due to aging effect. Third, in this thesis, a dsPIC30F4011 designed by MICROCHIP company is adopted as the control center to realize the overall control of the electronic ballast. Finally, a prototype ballast is also constructed for driving a 70W metal halide lamp. Experimental results show that the proposed fully digital control can indeed achieve the desired performance.

[1]Mark W., “A Study of The High Intensity Discharge Lamp Electronic Ballast Interface,” IAS Industry Applications Conference, vol 2, pp 1043-1048, Oct 2003
[2]Jia H. Chen, Kong S. Ng, Chin S. Moo, Sheng Y. Tang, and Ching R. Lee, “Accelerating Start-up of Metal Halide Lamps,” IEEE International Symposium on Industrial Electronics, vol 2, pp 1317 – 1321, July 2006
[3]Sheng Y. Tang, Jia H. Chen, Ching R. Lee, and Hung L.Cheng, “Starting Transient Characteristics of Metal Halide Lamps,” IEEE Power Convertion Conference , pp. 711-716, 2007.
[4]宋明俊，『複金屬燈特性研究』，中山大學碩士論文，中華民國八十九年六月。
[5]鍾昇文，『並聯式車用氙燈驅動器』，中山大學碩士論文，中華民國九十五年七月。
[6]賴文上，『汽車氙燈電子式安定器研製』，成功大學碩士論文，中華民國九十三年六月。
[7]徐文彬，『汽車用氙燈特性之研究』，成功大學碩士論文，中華民國九十年五月。
[8]Yan Wei, Y. K. E. Ho, and S. Y. R. Hui, “Investigation on methods of eliminating acoustic resonance in small wattage high-intensity-discharge lamps,” 2000 IEEE Conference Record of the Industry Applications Conference, Vol. 5, 8-12, pp. 3399-3406, Oct.2000
[9]M. Ponce, A. Lopez, J. Correa, J. Arau, and J. M. Alonso. “Electronic Ballast for HID Lamps with High Frequency Square Waveforms to Avoid Acoustic Resonances,” IEEE Applied Power Electronics Conference and Exposition, APEC'01 , pp. 658-663, march 2001
[10]Y. Hu, “Analysis and Design of High-Intensity-Discharge Lamp Ballast for Automotive Head,” master thesis, Virginia Polytechnic Institute,2001.
[11]Chien-Ming Huang, Tsorng-Juu Liang, Ray-Lee Lin, and Jiann-Fuh Chen , “A Novel Constant Power Control Circuit for HID Electronic Ballast,” IEEE Transactions on Power Electronics ,vol 22, pp 1573 1582, Sep 2007.
[12]Diaz, F.J., Azcondo, F.J., Branas, C., Casanueva, R. and Zane, R., “Control of low-frequency square-wave electronic ballast with resonant ignition using a dsPIC30F2010,” IEEE International Symposium on Industrial Electronics, pp3019-3024, June 2007
[13]Miaosen Shen, Zhaoming Qian, and Peng F. Z, “ A Novel Two-Stage Acoustic Resonance Free Eletronic Ballast For HID Lamps”, IAS Industry Applications Conference, vol 3, pp 1869-1874, Oct 2002
[14]Zhang Weiqiang and Xu Dianguo, “Novel constant power control of electronic ballast for HPS lamps”, in Proc. IEEE ICIT’02, vol 1,pp.129-132, 2002.
[15]Microchip Official Website http://www.microchip.com
[16]Gye-Hyun Jo; Chong-Yeun Park, “A study on electronic ballast for metal halide lamps with adaptive starting,” IEEE International Symposium on Industrial Electronics, vol 2, pp1057-1061, May 2004
[17]湯博文，『雙燈管複金屬燈電子式安定器之研製』，成功大學碩士論文，中華民國九十五年。
[18]Rong Guo, Min Chen, and Zhaoming Qian, “Study of Igniter in Low-Frequency Square Wave Electronic Ballasts for Metal Halide Lamps” IEEE Transactions on Power Electronics, vol 22 ,pp 1098-1106, July 2007.
[19]M. Ponce, E. Flores, and R. Osorio, “Analysis and design of igniters for HID lamps fed with square waveforms,” in Proc. IEEE PESC, vol. 1, pp. 396–400, Jun.2004
[20]吳財福、吳永駿、余德鴻，『調光電子安定器』，全華科技圖書股份有限公司，中華民國八十七年五月。
[21]W. Pabst and D. Klien, “Igniting High-Pressure Lamps with Electronic Ballasts, ”Journal of the Illuminating Engineering Society, pp. 14-20, Summer 1992
[22]G. Zaslavsky, S. Cohen, and W. Keeffe, “Improved Starting of the 100-W Metal Halide Lamp, ” Journal of the Illuminating Engineering Society, pp. 76-83, Summer 1990
[23]曾百由，『數位信號控制器原理與應用』，宏友圖書開發股份有限公司。
[24]dsPIC30F4011 High Performance Digital Signal Controllers, Microchip Technology, 2005.
[25]MPLAB C30 C compiler user guide, Microchip Technology, 2005.
[26]dsPIC Language Tools Getting Started, Microchip Technology, 2005.
[27]16-BIT LANGUAGE TOOLS LIBRARIES, Microchip Technology, 2005.
[28]F.J. Diaz, F. J. Azcondo, Ch. Braas, and R. Casanueva, “Digitally controlled low frequency square wave electronic ballast with resonantignition and power loop,” IAS Industry Applications Conference, pp 826-832, Sep 2007.