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研究生： 王志強
Wang, Zhi-Qiang
論文名稱： 具定電流控制之2.65MHz複金屬燈自激式電子安定器
2.65MHz Self-oscillating Electronic Ballasts with Constant-Lamp-Current Control for Metal Halide Lamp
指導教授： 林瑞禮
Lin, Ray-Lee
梁從主
Liang, Tsorng-Juu
學位類別： 碩士
Master
系所名稱： 電機資訊學院 - 電機工程學系
Department of Electrical Engineering
論文出版年： 2005
畢業學年度： 93
語文別： 英文
論文頁數： 73
中文關鍵詞： 自激 、電子安定器
外文關鍵詞： self-oscillating, electronic ballast
相關次數： 點閱：91  下載：5 
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    • 　本文提出具定電流控制之2.65MHz複金屬燈自激式電子安定器的電路，用來避開複金屬燈先天性的音頻共振現象及滿足EMI規範。此外，因為傳統自激式電子安定器之燈管電流與燈管功率隨輸入電壓變動而改變，造成複金屬燈的光譜偏移。所以本文提出具定電流控制電路的自激式電子安定器，來解決此自激式電子安定器燈管電流及燈管功率隨輸入電壓變動而改變的缺點。本文並以實作20W的具電流控制之2.65MHz複金屬燈自激式電子安定器，來驗證此複金屬燈無音頻共振問題及自激式電子安定器具有定電流之效果。

    　This thesis presents the 2.65MHz self-oscillating electronic ballasts with constant-lamp-current control for use in the metal halide lamp. To avoid the inherent acoustic-resonance problem of metal halide lamp and fulfill the EMI limitation in IEC regulation at the frequencies in between 2.5MHz and 3.0MHz, the ballast’s switching-frequency level was selected to be around 2.65MHz. This switching frequency is produced by utilizing the GE complementary self-oscillating electronic ballast and Philips self-oscillating electronic ballast. The conventional self-oscillating electronic ballasts are disadvantageous because the lamp current and lamp power vary according to the input voltage. This difference in lamp current causes the color-shifting of the emitted light for lamp. In order to solve the problems of the self-oscillating electronic ballast, a constant-lamp-current control circuit is the proposed to provide constant lamp current and lamp power.
    　Finally, two 20W 2.65MHz self-oscillating electronic ballasts with constant-lamp-current control for metal halide lamp are implemented, respectively. The ability to provide constant levels of the lamp current and lamp power is demonstrated in the experimental results to verify the performance of the proposed constant-lamp-current control scheme with no acoustic resonance in metal halide lamp.

    Chapter 1 Introduction 1 1.1 Background 1 1.2 Motivation 2 1.3 Outline of the Thesis 6 Chapter 2 Constant-Lamp-Current Control Schemes 7 2.1 Introduction 7 2.2 GE Complementary Self-oscillating Electronic Ballast with Constant-Lamp- Current Control 10 2.2.1 Operational Principle 10 2.2.2 Analysis of the Gate-Drive Network 15 2.3 Proposed Philips Self-oscillating Electronic Ballast with Constant-Lamp- Current Control 24 2.3.1 Operational Principle 24 2.3.2 Analysis of the Gate-Drive Network 29 2.4 Summary 38 Chapter 3 Design of Proposed electronic ballasts 39 3.1 Introduction 39 3.2 Resonant Tank of Self-oscillating Electronic Ballast 39 3.3 GE Complementary Self-oscillating Electronic Ballast 42 3.3.1 Gate-Drive Network 42 3.3.2 Constant-Lamp-Current Control Circuit 43 3.4 Philips Self-oscillating Electronic Ballast 45 3.4.1 Gate-Drive Network 45 3.4.2 Proposed Constant-Lamp-Current-Control Circuit 46 3.5 Summary 48 Chapter 4 Implementation and Experimental Results 49 4.1 Introduction 49 4.2 GE Self-oscillating Electronic Ballast 50 4.3 Philips Self-oscillating Electronic Ballast 59 4.4 Summary 68 Chapter 5 Conclusions and Future Works 69 References 72

    [1] Ceramic metal halide lamp (CMH20 single ended mini) datasheet, GE lighting.
    [2] Wei Yan, “Stability Study and Control Methods for Small-Wattage High-Intensity-Discharge (HID) Lamps,” IEEE Trans. Ind. Applicat, 2001, pp. 1522 – 1530.
    [3] M. Gulko and S. Ben-Yaakov, “A MHz electronic ballast for automotive-type HID lamps,” in Proc. IEEE PESC'97, 1997, pp. 39 – 45.
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    [5] Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment, International Electrotechnical Commission.
    [6] Dual-output current mode PWM controller, http://www.maxim-ic.com.
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    [10]L. R. Nerone, “A complementary Class D converter,” IEEE Applied Power Electronics Conference, 1998, pp. 2052-2059.
    [11] L. R. Nerone, “A mathematical model of the Class D converter for compact fluorescent ballasts,” IEEE Trans. on Power Electronics., vol. 10, November 1995,
    [12]Chin Chang, “Self-Oscillating Electronic Ballast Analysis Using the Relay Systems Approach,” IEEE Trans. Ind. Applicat, 2001, pp. 255 -261.
    [13] Y. D. Lee, “Constant Power Control Based Self-oscillating Ballast,” Thesis, NCKU, Tainan, June, 2004.
    [14] R. L. Lin, Y. D. Lee, “Constant Power Control Based Self-oscillating Ballast,” Taiwan Patent, Pub. No. 093118004, June, 21, 2004.
    [14] R. L. Lin, “Constant Current Control Based Self-oscillating Electronic Ballast,” Taiwan Patent, Pub. No. 94124400, July, 19, 2005.
    [15] F. F. Tao, “Advanced High-Frequency Electronic Ballasting Techniques for Gas Discharge Lamps,” Ph.D. Dissertation, Virginia Tech, December 1997.

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