具有主動式箝位電路之電流饋入式全橋昇壓型轉換器的研製

本論文主要研製一具有主動式箝位電路的電流饋入式全橋昇壓型轉換器，其設計規格為輸入電壓70V~150V，輸出電壓170V~300V，額定輸出功率為1000瓦，開關切換頻率為50 kHz。本論文的貢獻為設計一主動式箝位電路，來解決電流饋入式轉換器的輸入電感在放電模式下，於功率開關元件上會有電壓突波的問題。實驗系統係以TMS320F2812數位訊號處理器為核心，撰寫C語言以控制具有主動式箝位電路的電流饋入式全橋昇壓型轉換器。實驗結果顯示，本論文所研製之具有主動式箝位電路的電流饋入式全橋昇壓型轉換器轉換器，確實可抑制功率開關元件上的電壓突波，並且於滿載時效率可達90%以上。

關鍵字

全橋昇壓型直流轉換器；數位信號處理器；箝位電路

並列摘要

The objective of this thesis is to design a current-fed full-bridge boost converter with active clamping circuit. The design specifications include：input voltage 70V ~ 150V and output voltage 170V ~ 300V, output power 1000 W, and switching frequency 50 kHz. The contribution of this thesis is to design active clamping circuit to improve voltage spikes on power MOSFET during the discharge of input inductance. The current-fed full-bridge boost converter with active clamping circuit is controlled by TMS320F2812 DSP as a core processor and the controller is implemented using C language. It has been demonstrated that the designed converter suppresses the voltage spikes and its efficiency achieves 90 % under full load.

並列關鍵字

full bridge boost converter ； digital signal processor ； clamping circuit

參考文獻

[19] 白昇右，「具有中性點電壓平衡之二極體箝位式三階變頻器的研製」，國立台北科技大學電機工程系碩士學位論文，國立台北科技大學電機工程系，民國九十六年一月。

[13] 林延璋，具有軟式切換之功率因數修正器的研製，國立台北科技大學電機工程系碩士學位論文，民九十六年六月。

[1] S. J. Jeon and G. H. Cho, “A zero-voltage and zero-current switching full bridge DC–DC converter with transformer isolation,” IEEE Trans. on Power Electronics, vol. 16, no. 5, pp. 573-580, 2001.

[2] A. Bendre, S. Norris, D. Divan, I. Wallace and R. W. Gascoigne, “New high power DC-DC converter with loss limited switching and lossless secondary clamp, ” IEEE Trans. on Power Electronics, vol. 18, no.4 pp. 1020-1027.

[3] J. G. Cho, J. W. Baek, C. Y. Jeong, D. W. Yoo and K. Y. Joe, “Novel zero-voltage and zero-current-switching full bridge PWM converter using transformer Auxiliary Winding,” IEEE Trans. on Power Electronics, vol. 5, no. 2 pp. 250-257, 2000.

國際替代計量

具有主動式箝位電路之電流饋入式全橋昇壓型轉換器的研製

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