臺灣博碩士論文加值系統

本論文分析半橋式零電壓切換三階轉換器，適用於高電壓輸入場合，此電路架構初級側功率開關元件應力為輸入電壓之一半，有利於功率開關元件之選用。控制方式採用相當普遍的市售類比IC UCC3895，以實現零電壓切換，有效降低切換損失進而提升效率。最後配合SIMPLIS軟體之模擬，實際完成一台電壓輸入範圍為800 V~1000 V、輸出為48 V/750 W、滿載效率94 %之直流-直流轉換器，初級側功率開關元件選用耐壓為650 V，驗證了此架構之可行性。

The main purpose of this thesis is to analyze a half-bridge zero-voltage-switching (ZVS) three-level DC-DC converter, which is suitable for high input-voltage applications. The voltage stress of the primary-side power switch is equal to half the input voltage. Therefore, it is easy to choose the power switch device. The control method adopts the commonly-used commercial analog IC UCC3895 to reach ZVS and reduce the switching loss effectively. So the conversion efficiency can be improved. With the aid of the simulation software tool, a 750-W DC-DC converter with an input voltage range of 800 V ~ 1000 V, an output voltage of 48 V is implemented. The full-load efficiency is up to 94 %. The voltage stress of the primary-side power switch device is selected 650 V. As a result, the feasibility for this DC-DC converter architecture is verified.

摘　要 i
Abstract ii
誌　謝 iii
目　錄 vi
圖目錄 viii
表目錄 x
第一章 緒論 1

1.1研究動機與目的 1
1.2內文編排方式 2

第二章 半橋式轉換器與柔性切換技術 3

2.1電路動作原理 3
2.2穩態分析 6
2.3柔性切換技術 8

第三章 半橋式零電壓切換三階轉換器 10

3.1主電路架構說明 10
3.2半橋式零電壓切換三階轉換器控制電路介紹 13
3.3電路轉換區間之動作分析 14
3.4有效責任週期 23
3.5零電壓切換條件分析 25

第四章 半橋式零電壓切換三階轉換器電路實作與設計 27

4.1電路電氣規格制定 27
4.2控制IC UCC3895參數設計 27
4.3電路元件設計 31

第五章 實驗測試結果 41

5.1損耗分析 41
5.2電路模擬 45
5.3模擬波形 46
5.4實測波形與數據 49

第六章 結論與未來展望 59

6.1結論 59
6.2未來展望 59

參考文獻 61

[1]A. l. Pressman, “Switching Power Supply Design,” McGraw-Hill, Inc., 1998.
[2]N. Mohan, T. M. Undeland, and W. P. Robbins, “Power Electronics Converters, Applications and Design,” John Wiley & Sons, 3rd Edition, 2003.
[3].J. C. Salmon, “Circuit topologies for PWM boost rectifiers operated from 1-phase and 3-phase AC supplies and using either single or split DC rail voltage outputs,” in APEC., pp. 473-479, 1995.
[4]J. R. Pinheiro, and I. Barbi, “The three-level ZVS-PWM DC-to-DC converter,” IEEE Trans. Electron., vol. 8, no.4, pp. 486-492, Oct. 1993.
[5]J. S. Lai and F. Z. Peng, “Multilevel converters-a new breed of power converters,” IEEE Trans. Ind. Appl., vol. 32, pp. 509-517, May 1996.
[6]B. M. Song, R. McDowell, A. Bushnell, and J. Ennis, “A three-level DC-DC converter with wide-input voltage operations for ship-electric-power-distribution systems,” IEEE Trans. Plasma Sci., vol.32, no.5, part1, pp. 1856-1863, Oct. 2004.
[7]F. Canales, P. Barbosa, and F. C. Lee, “A wide input voltage and load output variations fixed-frequency ZVS DC/DC LLC resonant converter for high-power applications,” in Proc. IEEE 37th Ind. Appl. Soc. Annu. Meet. Conf., pp. 2306-2313, 2002.
[8] W. H. Li, Y. M. He, X. N. He, Y. J. Sun, F. Wang, and L. Ma, “Series asymmetrical half-bridge converters with voltage autobalance for high input-voltage applications,” IEEE Trans. Power Electron., vol. 28, no. 8, pp. 3665-3674, Aug. 2013.
[9] E. Deschamps and I. Barbi, “A flying-capacitor ZVS PWM 1.5 kW DC-to-DC converter with half of the input voltage across the switches,” IEEE Trans. Power Electron., vol. 15, pp. 855-860, Sept. 2000.
[10]林景源，「適用於大範圍負載變化之電源供應器研製」，國立台灣科技大學電子工程系研究所碩士論文，民國93年。
[11]洪賢峰，「伺服器並聯電源供應器模組之研製」，國立台灣科技大學電子工程系研究所碩士論文，民國97年。
[12]梁適安，「高頻交換式電源供應器原理與設計」，第二版，台灣全華科技圖書出版，民國91年6月，第152-170頁。
[13]王釗桴，「單級雙變壓器主動箝位反馳式轉換器研製」，國立台灣科技大學電子工程系研究所碩士論文，民國99年。
[14]H. Sugimura, S. P Mun, S. K. Kwon, T. Doi, K. Morimoto, and M. Nakaoka, “Three-level phase shifted ZVS-PWM DC-DC converter with neutral point diodes clamping and flying capacitor,” in ISIE pp.1071-1076, July 5-8, 2009.
[15]Texas Instruments Incorporated, “UCC3895 BiCMOS Advanced Phase Shift PWM Controller,” Datasheet, 2005.
[16]林鴻儒，「高效率電動車輛充電器之研製」，國立台灣科技大學電子工程系研究所碩士論文，民國101年。
[17]B. R. Lin, K. Huang, and D. Wang, “Analysis and implementation of full-bridge converter with current doubler rectifier,” IEE Proc.-Electr. Power Appl., Vol. 152, no.5, pp. 1193-1202, Sept. 2005.
[18]吳義利，「切換式電源轉換器」，文笙書局股份有限公司，民國101年7月。
[19]Z. Emami, M. Nikpendar, N. Shafiei, and S.R. Motahari, “Leading and lagging legs power loss analysis in ZVS phase-shift full bridge converter,” (PEDSTC), 2011 2nd pp. 632-637, Feb. 2011.