未來研究方向

本文提出對偶返馳式電路之高功因交直流轉換器，經由電路模擬程式以及實驗實 際量測後，證明實驗結果與理論分析上相符，但電路仍存在改進空間，以下提供未來 研究方向：

1. 控制電路數位化：

本文使用類比 IC 電路，現成的 IC 控制，其內部設計通常不易改變，因而限制了 一些條件(如:導通率不能改變)。使用數位控制電路取代類比 IC 電路，將所需之驅動 訊號用程式語言控制，編寫程式並燒錄於數位控制電路內，使電路控制更具彈性化，

修改參數也更為方便。

2. 輸入電壓源全域化：

研製全域輸入電壓電路，使電路能夠使用 90V~265V 之交流輸入電壓，讓電路之 應用範圍更加廣泛。

3. 脈波寬度調變低頻調光：

因調光方式為改變 LED 兩端的電壓，有調光之目的，但發光顏色會隨著電流大 小而變化，造成 LED 演色性降低。未來使用 PWM 低頻調光控制，瑝脈波訊號為高 電壓時，開關導通；瑝脈波訊號為低電壓時，開關截止。透過人類視覺暫留的效果，

眼睛不易察覺 LED 的閃爍，因此改變低頻脈波之導通率就能控制流經 LED 的平均電 流，而控制 LED 的發光亮度，因導通時的電流大小相等，發光色彩維持一致，避免 LED 演色性降低。

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