本論文提出交錯式二次側磁重置順向轉換器架構。採用兩組順向式轉換器並聯且開關訊號交錯之方式，可提高轉換器功率及降低輸出電流漣波。另外，透過兩個二極體相互連接二次側，由二次側交錯重置變壓器，因此可減少重置繞組所佔變壓器繞線窗之體積，達到縮小變壓器體積之目的，且將磁化電流釋放至負載可改善變壓器轉換效能。文中首先探討常見各類型順向式轉換器之變壓器磁重置方式，其次說明變壓器如何由另一相之二次側交錯磁重置，並分析交錯式二次側磁重置順向轉換器之動作原理及設計考量。最後實作一輸入直流電壓220V、直流輸出電壓24V、輸出功率240 W之交錯式二次側磁重置順向轉換器，以實驗結果驗証理論分析。

In this thesis, interleaved forward converters with secondly magnetizing reset are proposed. Two forward converters are in parallel connection. The gate driving signals of the two forward converters are interleaved to reduce output current ripple. Furthermore, the transferring capability of the transformer is improved by magnetizing current discharge to load. Magnetizing current flows through the secondary winding to the secondary side of the other forward converter with diode connected. Interleaved community secondary winding reset transformer can reduced transformer size. At first, the magnetizing reset methods of the transformer in conventional forward converters are discussed. Secondly, interleaved magnetizing reset from the secondary side of the other transformer is explained. Then operation principle and design parameters of the interleaved forward converters with secondly magnetizing reset are analyzed. Finally, the proposed converter with a dc 220V input and a dc 24V/10A output has been implemented to verify the theoretical analysis.

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