本文研製出具有新型電路架構並使用軟體控制之汽車氙燈電子式安定器。該安定器可適用於新型D1汽車氙燈，且具有下列的優點：高效率、可採用低額定耐壓元件，以及35W定功率輸出。使用傳統返馳式轉換器架構的汽車氙燈安定器、因需選用較高耐壓之元件，故無法達到高效率的目標；另無定功率控制功能的汽車氙燈安定器，因為燈管功率會隨使用時間增加而變動，將會導致光輸出不穩定、並會減低燈管使用壽命。本文所提出之汽車氙燈電子式安定器，除了使用新型升壓-返馳式轉換器架構以達到高效率的目的，亦採行軟體定功率控制，以得到穩定的光輸出。實測結果顯示所研製之新型汽車氙燈電子式安定器具有89%高效率，確實可達成35W定功率輸出功能。

　　An automotive xenon lamp electronic ballast with new hardware structure and constant-lamp power is presented in this thesis. The proposed electronic ballast for new generation D1-type Lamp has the following advantages: high efficiency, low voltage rated power devices, and constant-lamp power control. The electronic ballast with flyback converter configuration uses higher voltage rated power devices and gets lower efficiency. Due to the ballast with non-constant-lamp power control, the luminous of automotive xenon lamp vary and the life of lamp decreases. To solve the questions of low efficiency, high voltage stress on power devices, and variation of lamp luminous, a microcontroller-based electronic ballast with Boost-Flyback converter configuration is designed and implemented. The experimental results show that the proposed electronic ballast has features of 89% high efficiency, low voltage stress on power devices, and constant 35W lamp power.

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