全橋相移壓電式電子安定器設計與研製

Design and Implementation of Phase-Shift Full-Bridge Electronic Ballast

余宗翰(Zong-Han Yu)

指導教授 ： 何金滿

中原大學/工學院/電機工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700254

摘要

本文提出全橋相移壓電式電子安定器來驅動冷陰極管(CCFL)，其架構是由全橋相移反流器及壓電變壓器所組成，藉由此架構來提供啟動電壓與穩定的正常工作電壓。
壓電變壓器有諸多的優點，像是高效率、無電磁干擾(EMI)、平面型…等等，這些條件會使壓電變壓器比傳統電磁式變壓器更適合用來驅動冷陰極管(CCFL)，另外，壓電變壓器本身就可以替代諧振網路，甚至於整個電路無須再加其他諧振元件(電感、電容)，這是對整個驅動電路一項很大的改進。

關鍵字

電子安定器 ； 壓電變壓器

並列摘要

A full bridge phase-shift resonance system for driving CCFL (Cold Cathode Fluorescent Lamp) with Piezoelectric Transformer (PT) is proposed in this paper. Piezoelectric Transformer has some advantages such as high efficiency, no EMI , flat-shape and etc. These advantages make PT very suitable to replace conventional electromagnetic transformer in driving CCFL. Analysis of full bridge phase-shift resonance inverter is mentioned. Phase-shift dimming to change illumination of lamps, and using ballast capacitor to balance the lamp currents are also discussed in this paper.

並列關鍵字

Piezoelectric Transformer ； Electronic Ballast

參考文獻

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