本文提出應用圓型疊層式壓電變壓器於螢光燈電子安定器之架構，藉由變頻控制的方式，以兼顧燈管具有足夠的啟動電壓與穩定操作電壓，俾使有良好的控制特性。在圓型疊層壓電變壓器方面，利用MATLAB進行分析，再模擬其特性並實際量測。在電子安定器部分，分別討論含諧振槽式和無諧振槽式兩種架構，藉由設計諧振槽或壓電變壓器使得功率開關達到零電壓切換導通，以提高整體效率。另外，為了改善電力品質問題，電子安定器加入充電幫浦式功因修正電路，提高功率因數並降低電流諧波成分。最後實作雛形電路並驗證其結果。

　　This thesis presents electronic ballast for fluorescent lamp utilizing round-shaped multi-layer piezoelectric transformer (PT). We design the frequency shift control technique to obtain enough ignition and operation voltage. The electric characteristics of the PT are investigated and analyzed. MATLAB is used to analyze and design the PT, the characteristic of which are also simulated and measured. The resonant-tank and the resonant-tank-less frameworks of the electronic ballast are discussed for individuals. By designing the resonant tank or the PT to make power switches gain zero voltage switching and enhance overall efficiency. For solving an issue of power quality, the electronic ballast included the charge pump power factor correction circuit to raise power factor and reduce current harmonic components. The experimental and simulation results are provided to verify theoretical analysis.

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