本論文主要研製一台具高穩壓率之多組輸出的直流-直流轉換器，採用主架構為改良型雙晶順向式轉換器，利用額外洩磁繞組技術改善傳統雙晶順向式轉換器責任週期無法超過50%之缺點，使其整體轉換效率提升。每組輸出以雙向開關取代順向整流二極體，並且各自回授穩壓，再將回授信號合成後控制一次側開關，使單級轉換也可達到高穩壓特性。
文中針對提出的架構進行電路分析，導出設計流程，做為選擇適當元件的依據，且使用Simplis模擬軟體完成整機之電路模擬，最後實現一台總輸出功率250W，具有三組輸出分別為12V/15A、5V/10A、3.3V/6A之直流轉換電路，並以實測的結果驗證模擬和理論。

This thesis mainly studies and implements a multi-output DC-DC converter with high regulation rate. Dual-switch forward converter is adopted for the main structure. With extra windings to release energy, the efficiency and inherent limitation of duty cycle within 50% can be improved. The forward rectifiers will be replaced with AC-switch in each output which voltage will be using regulated, individually. Then the feedback signal will be combine to control the primary side switch. Achieve high regulator rate using a single-stage conversion.
According to the proposed circuit analyses and design process, use Simplis simulation software as the basis for selecting the appropriate components to implement the circuit simulation, and finally implement a total output power of 250W triple output to 12V/15A, 5V/10A 3.3V/6A DC conversion circuit, and the measured results verify the simulation and theory.

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