本論文主旨為研製一「錯相式單級升壓-返馳式轉換器」，此架構同時兼具功因修正與電壓調節之特點，並採用兩台升壓-返馳式轉換器錯相並聯運轉以增加系統輸出功率，並降低輸入與輸出電流漣波。本文首先探討各式交-直流電源轉換架構，包含功因修正電路、各式隔離型直流-直流轉換器與單級電源轉換器。並說明本文提出之錯相式升壓-返馳式轉換器之架構之動作原理、特性與設計流程。最後實際製作此「錯相式單級升壓-返馳式轉換器」，其輸入電壓範圍為90~130 Vrms，輸出為直流24 VDC/200 W，以驗證理論之可行性。

In this thesis, the interleaved single-stage boost-flyback converters are designed and implemented. Power factor correction and output voltage regulation can be achieved. The output power can be increased by using interleaved parallel connected operation with low input and output current ripple. Firstly, the characteristics of power factor corrector stage and DC-DC stage are discussed. The composing methods of two-stage to single-stage topologies are also mentioned. Then, the operating principle and design process of the proposed converter are presented. Finally, the proposed converters are performed with input 90~130 Vrms and output 24 VDC/200 W to verify the theoretical feasibility.

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