單級非對稱半橋可調光電子安定器

A Single-Stage Dimmable Electronic Ballast with Asymmetrical Half Bridge for Fluorescent Lamps

陳以尚(Yi-Shang Chen)

指導教授 ： 邱煌仁

中原大學/工學院/電機工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400092

摘要

摘 要
本論文針對螢光燈管，提出一種由單級非對稱半橋換流器、負載諧振電路及切換電容調光控制電路所組成之電子式安定器，期能同時達到高效率、高功率因數、低成本、及寬幅調光之設計目的。電路架構係以非對稱半橋換流器為主體，並整合升壓型功率因數修正器實現單級電能轉換，實際簡化電路複雜度，減少元件數目。調光操作則採取調變諧振頻率的方式，以達到寬幅調光之功能。最後，依據本論文提出之設計流程，實際製作一部電子式安定器。所量測之功率因數和效率分別可達0.98及85%，調光操作則達到3:1的範圍。

關鍵字

調光操作 ； 功率因數修正 ； 單級非對稱半橋換流器

並列摘要

Abstract
In this thesis, a dimmable electronic ballast that consists of a single-stage asymmetrical half-bridge inverter, a load resonant tank and a switched-capacitor dimming control circuit is proposed for driving fluorescent lamps. High efficiency and unity power factor are achieved by the proposed single-stage topology. The switched-capacitor dimming control technique provides better dimming features. The steady-state operating principle and design procedure for the proposed single-stage dimmable electronic ballast are analyzed and discussed in detail. A ballast prototype was implemented at the laboratory. The experimental results verify the feasibility of the proposed method. The measured power factor and efficiency are up to 0.98 and 85%, respectively. The illumination range can achieve 3:1 dimming operation.

並列關鍵字

Power Factor Correction ； Single-Stage Asymmetrical Half-Bridge Inverter ； Dimming Operation

參考文獻

[1] C. S. Moo, H. L. Cheng and Y. N. Chang, ”Single Stage High Power Factor Dimmable Electronic Ballast with Asymmetrical Pulse Width Modulation for Fluorescent Lamps”, IEE Proceedings on Electric Power Applications, Vol. 148, pp. 125 - 132, March 2001

[3] W. J. Gu and K. Harada, ”A new method to regulate resonant converters”, IEEE Transactions on Power Electronics, Vol. 3, pp. 430 - 439, Oct. 1988

[4] R. N. Prado and S. A. Bonaldo, ”A High-Power-Factor Electronic Ballast Using a Flyback Push-Pull Integrated Converter”, IEEE Transactions on Industrial Electronics, Vol. 46 , pp. 796 - 802, Aug. 1999

[5] A. J. Calleja, J. M. Alonso, J. Ribas, E. L’opez J. Cardesin, J.Garcia, and M. Rico-Secades, ”Single-Stage High-Power-Factor Electronic Ballast Based on Integrated Forward Half-Bridge Resonant Inverter”, Conference Record of the 2001 IEEE Thirty-Sixth IAS Annual Meeting, Vol. 1.130, pp. 510 – 516, Oct. 2001

[6] T. H. Yu, L. M. Wu, T. F. Wu, ”Comparisons Among Self-Excited Parallel, Series Resonant and Current-Fed Push-Pull Electronic Ballast”, 1994 APEC '94 Conference Proceedings 1994 Applied Power Electronics Conference and Exposition, Ninth Annual , vol.1, pp. 421 – 426, Feb. 1994