- 學位論文
短弧氙燈續弧特性與電子安定器之研究
Research of Arc-Sustaining Characteristics and Electronic Ballast for Short-Arc Xenon Lamp
摘要
本文提出以交錯式半波整流器整合 LCC 串並聯諧振電路，供應氙燈啟 動之續弧電流並用以驗證低電流之續弧性能。本電子安定器透過 交錯式半波整流器的作用，可以提供氙燈所需的續弧電壓及供給點火後所 需的續弧電流，用以避免續弧電流峰值高於額定電流的問題。本電子安定 器具有零電壓切換、倍流特性、高調光範圍，並可提供氙燈高效率低電流 漣波之直流電源。最後，本文實際應用於一組25A、500W 之短弧氙燈電子 式安定器，續弧電流最低可達4.11A，僅燈管額定電流的16.5%，且續弧電 流越高，續弧時間也會越短。本安定器啟動電流低於16A，整體驅動器效 率可高達91.32%，調光範圍可從9%至100%，燈管電流漣波可達1%以下。
並列摘要
This thesis presents a LCC resonant circuit integrated with interleaved half-wave rectifiers in charge of arc-sustaining. Thus, verified starting current is lower than rated current. Ballast in this thesis consist of interleaved half-wave rectifiers accompanied with LCC resonant circuit, which is used for arc-sustaining, and achieved low current ripple and high efficiency. The ballast in this thesis has functions of ZVS, current-doubler and wide range dimming control. Finally, ballast for 500W with 25A of short-arc xenon lamp is developed. By experimental results, minimum sustaining current is 4.11A, which is less than 16.5% of rated output. On the other hand, the higher current for arc-sustaining, the shorter time for arc-sustaining. Starting current of the ballast is lower than 16A, also achieves 91.32% of efficiency at rate output. Moreover, dimming range can be accomplished from 9% to 100%, current ripple of short-arc xenon lamp has successfully limited less than 1%.