本論文主要為研製一「錯相式LLC半橋諧振轉換器」，電路採用兩組LLC諧振轉換器並聯，利用控制電路使兩組開關錯相90度驅動，以減小輸出電流漣波及增加輸出功率。另外，功率開關具有零電壓切換及輸出二極體具有零電流切換以降低切換損失。本論文首先探討電路架構之特性，並分析電路工作原理及設計過程。最後實作「錯相式LLC半橋諧振轉換器」，電路之輸入直流電壓為380~420 V，輸出為24 V/20 A，以驗證理論之可行性。

In this thesis, interleaved LLC half-bridge resonant converters are designed and implemented. In order to increase output power, two LLC resonant converters are parallel-connected. Two gate driver signals of switches are interleaved by 90 degrees to reduce output-current ripple. Besides, switch losses on power devices can be reduced by zero voltage switching(ZVS) and output diode with zero current switching(ZCS). The characteristics of the proposed topology are discussed, and the operation principles and design process are also addressed in this thesis. Finally, interleaved LLC half-bridge resonant converters with input 380~420 V and output 24 V/20 A is implemented to verify the theoretival feasibility.

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