本論文提出一個具有低輸入電流漣波的半橋電能轉換器電路架構(HBC-CRR)，藉由有效地利用變壓器的漏感與一個箝位電容，本論文所提出的轉換器(HBC-CRR)，不僅擁有傳統半橋電能轉換器所具有的優點，如元件有較低的電壓應力及開關電壓箝制等，並且以最少的元件能有效降低輸入電流漣波，可使用較小的電磁干擾濾波器，而能達成電磁干擾的電氣規格。這些特性使得本論文所提出的轉換器適合應用在高頻、高效率與需要較嚴苛的EMI的電力轉換應用。本論文架構包含電路動作原理、電路分析、電路設計、電路模擬以及實驗結果，並且完成一個輸入360-440V， 輸出12V/20A，操作頻率100 kHz的硬體驗證。

This study attempts to establish a new low input current ripple topology, namely Half-Bridge Converter with Input Current Ripple Reduction (HBC-CRR). By effectively utilizing leakage inductance of power transformer and adding a clamping capacitor, the HBC-CRR inherited the advantages of the Half-Bridge Converter (HBC) not only has low voltage stress on power devices, lossless snubbing, voltage clamping features but also remarkably reduce the input current ripple with minimum component count. Consequently, both electromagnetic interference (EMI) intensity and root mean square (RMS) value of the input current are significantly decreased. As a result, smaller input filter can be used. These characteristics make it suitable for high frequency, high efficiency, and low EMI power conversion applications. This thesis consists of operating principle, circuit analysis, design considerations, simulated results, and experimental results of the HBC-CRR with 360-440V input, 12V/20A output, and 100kHz operating frequency.

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