本論文主要研製「錯相準諧振返馳式轉換器」，電路採用兩組準諧振返馳式轉換器並聯，利用控制電路使兩組開關錯相驅動，以減小輸出電流漣波及增加輸出功率。另外，開關於電壓波谷時導通以降低切換損失。本論文首先探討錯相準諧振返馳式轉換器電路架構之特性，並分析電路工作原理及設計過程。最後實作「錯相準諧振返馳式轉換器」，電路之輸入直流電壓為300 ~ 400 V，輸出為24 V /8.33 A，以驗證理論之可行性。

In this thesis, interleaved quasi-resonant (QR) flyback converters are designed and implemented. In order to increase output power, two QR flyback converters are parallel connected. Two gate driver signals of two QR flyback converters are interleaved by the control circuit to reduce output current ripple. Besides, active switch are turned on at valley voltage condition to reduce switching losses. The operating principles and design processes are also discussed. Finally, interleaved QR flyback converters with input 300~400 V and output 24 V/8.33 A are implemented to verify the theoretical analysis.

[1] 梁適安，交換式電源供應器之理論與實務設計，全華科技圖書股份有限公司，民國八十三年。
[2] EPARC，電力電子綜論，全華科技圖書股份有限公司，民國九十五年。
[3] K. Harada and H. Sakamoto, “Switched snubber for high frequency switching,”in Proc. IEEE PESC’90, pp. 181-188, Jun. 1990.
[4] H. J. Kim, C. S. Leu, R. Farrington, and F. C. Lee, “Clamp mode zero-voltage-switched multi-resonant converters,” in Proc. IEEE PESC’92, vol. 1, pp. 78-84, Jun. 1992.
[5] R. Watson, F. C. Lee, and G. C. Hua, “Utilization of an active-clamp circuit to achieve soft switching in flyback converters,” in Proc. IEEE PESC’94, vol. 2, pp. 906-916, Jun. 1994.
[6] G. B. Koon and M. J. Youn, “A new zero voltage switching active clamp flyback converter,” in Proc. IEEE PESC’05, vol. 1, pp.508-510, Jun. 2005.
[7] J. Y. Lee, G. W. Moon, and Y. S. Jung, “A new single-stage AC/DC converter with high efficiency and high power factor,” in Proc. IEEE INTELEC, pp. 263–270, Oct. 1996.
[8] K. H. Liu and F. C. Lee, “Zero-voltage switching technique in DC/DC converters,” IEEE Trans. on Power Electronics, vol. 5, no. 3, pp. 293-304, Jul. 1990.
[9] J. Feng, Y. Hu, W. Chen, and C. C. Wen, “ZVS analysis of asymmetrical half-bridge converter,” in Proc. IEEE PESC’01, vol. 1, pp.243-247, Jun. 2001.
[10] C. P. Henze, H. C. Martin, and D. W. Parsley, “Zero-voltage switching in high frequency power converters using pulse width modulation,” in Proc. IEEE APEC’88, pp. 33-40, Feb. 1988.
[11] F. C. Lee, “High-frequency quasi-resonant converter technologies,” IEEE Proc., vol. 76, no. 4, pp. 377-390, Apr. 1988.
[12] J. M. Zaza, J. P. Ferrieux, and J. Perard, “A high frequency resonant flyback switching power supply,” Third International Conf. on Power Electronics and Variable-Speed Drives, pp.120-124, Jul. 1988.
[13] H. Noji, T. Kawahara, R. Sato, and H. Tohya, “Analysis and design of current-resonant converter,”in Proc. IEEE PESC’88, pp.1244-1251, Apr. 1988.
[14] R. B. Ridley, A. Lotfi, V. Vorperian, and F. C. Lee, “Design and control of a full-wave, quasi-resonant flyback converter,” in Proc. IEEE APEC’88, pp.41-49, Feb. 1988.
[15] M. M. Jovanovic, F. C. Y. Lee, and D. Y. Chen, “A zero-current-switched off-line quasi-resonant converter with reduced frequency range: analysis, design, and experimental results,” IEEE Trans. on Power Electronics, vol. 4, no. 2, pp 205-214, Apr. 1989.
[16] V. Vorperian, R. Tymerski, and F. C. Y. Lee, “Equivalent circuit models for resonant and PWM switches,” IEEE Trans. on Power Electronics, vol. 4, no. 2, pp.217-225, Mar. 2005.
[17] W. A. Tabisz and F. C. Lee, “Zero-voltage-switching multiresonant technique-a novel approach to improve performance of high-frequency quasi-resonant converters,” IEEE Trans. on Power Electronics, vol. 4, no. 4, pp. 450-458, Oct. 1989.
[18] 江成忠，具同步整流輸出之返馳式轉換器，中原大學電機工程學系碩士論文，民國九十五年六月。
[19] C. Chang and M. A. Knights, “Interleaving technique in distributed power conversion systems,” IEEE Trans. on Circuit and Systems, vol. 42, no. 5, May 1995.
[20] D. S. Lo and C. P. Henze, “Development of a DC-to-DC power converter,” in Proc. IEEE APEC’89, pp. 413-422, Mar. 1989.
[21] G. C. Hua, W. A. Tabisz, C. S. Leu, N. Dai, R. Watson, and F. C. Lee, “Development of a DC distributed power system,” in Proc. IEEE APEC’94, vol. 2, pp. 763-769, Feb. 1994.
[22] C. Chang, “Current ripple bounds in interleaved DC-DC power converters,” IEEE on Power Electronics and Drive Systems, vol. 12, pp. 738-743, Feb. 1995.
[23] D. J. Perreault and J. G. Kassakian, “Distributed interleaving of paralleled power converters,” IEEE Trans. on Circuit and Systems, vol. 44, no. 8, pp. 728-734, Aug. 1997.
[24] K. I. Hwu and C. F. Chuang, “Development of interleaved control for the PFC flyback converter,” in Proc. IEEE TENCON’07, pp. 1-4, Oct. 2007.
[25] J. Zhao, H. Zhao, and F. Dai, “A novel ZVS PWM interleaved flyback converter,” in Proc. IEEE ICIEA’07, pp. 337-341, May 2007.
[26] S. Y. Tseng, C. T. Hsieh, and C. M. Yang, “Interleaved flyback converter with turn-on/off snubber for poultry stunning applications,” in Proc. IEEE APEC’08, pp. 1000-2005, Feb. 2008
[27] 林景源，雙變壓器主動箝位順向式與返馳式轉換器，國立台灣科技大學電子工程系博士論文，民國九十六年七月。
[28] On Semiconductor, “NCP1377 PWM current-mode controller for free-running quasi-resonant operation” Oct. 2004.
[29] A. S. Sedra and K. C. Smith, Microelectronic Circuit, 4th ed., Oxford University Press, 1998.
[30] 謝沐田，高低頻變壓器設計，全華科技圖書股份有限公司，民國八十一年。