本文研製一部具功因校正的數位化直流電源供應器，硬體電路主要包括功因校正電路及相移式全橋電路。文中以積體電路UC3854作為功因校正的控制器，並使用數位訊號處理器TMS320LF2407A完成閉迴路控制。本文中針對相關原理及設計方法進行探討。最後完成一部輸出直流48V，輸出功率864W，輸入電源側功率因數0.99，且輸入電流諧波滿足EN-61000-3-2規範的電源供應器。實測的結果與理論分析相當符合，說明本文的可行性及正確性。

The thesis implements a digital DC power supply with power factor correction. The hardware circuit includes a power factor correction circuit and a phase-shift full-bridge circuit. In the thesis, a UC3854 is used to control the power factor of the input source. In addition, a TMS320LF2407A is used to execute the closed loop control algorithms. The detailed principles and design methods are included. Finally, a DC power supply with 48V/864W, 0.99 power factor, satisfactory EN-61000-3-2 Standards is implemented. Experimental results can validate the theoretical analysis to show the feasibility and correctness of the thesis.

參考文獻
[1] N. Lakshminarasamma and V. Ramanarayanan, “A family of auxiliary switch ZVS-PWM DC-DC converters with coupled inductor,” IEEE Trans. Power Electron., vol. 22, no. 5, pp. 2008-2017, Sep. 2007.
[2] Y. S. Lee and G. T. Cheng, “Quasi-resonant zero-current-switching bidirectional converter for battery equalization applications,” IEEE Trans. Power Electron., vol. 21, no. 5, pp. 1213-1224, Sep. 2006.
[3] W. Tang, C. Shan, and F. C. Lee, “Charge control for zero-voltage-switching multiresonant converter,” IEEE Trans. Power Electron., vol. 11, no. 2, pp. 270-274, Mar. 1996.
[4] T. F. Wu, S. A. Liang, and Y. K. Chen, “A structural approach to synthesizing soft switching PWM converters,” IEEE Trans. Power Electron., vol. 18, no. 1, pp. 38-43, Jan. 2003.
[5] C. M. Wang, “A novel single-stage series-resonant buck-boost inverter,” IEEE Trans. Ind. Electron., vol. 52, no. 4, pp. 1099-1108, Aug. 2005.
[6] H. Chen, E. K. Kenneth, and K. J. Tseng, “Generalized optimal orajectory control for closed loop control of series-parallel resonant converter,” IEEE Trans. Power Electron., vol. 21, no. 5, pp. 1347-1355, Sep. 2006.
[7] G. Hua, F. C. Lee, and M. M. Jovanovic, “An improved full-bridge zero-voltage-switched PWM converter using a saturable inductor,” IEEE Trans. Power Electron., vol. 8, no. 4, pp. 530-534, Oct. 1993
[8] Y. Jang and M. M. Jovanovic, “A new PWM ZVS full-bridge converter,” IEEE Trans. Power Electron., vol. 22, no. 3, pp. 987-994, May 2007.
[9] H. K. Yoon, S. K. Han, and J. S. Park, “Zero-voltage switching two-transformer full-bridge PWM converter with lossless diode-clamp rectifier for PDP sustain power module,” IEEE Trans. Power Electron., vol. 21, no. 5, pp. 1243-1252, Sep. 2006
[10] J. Dudrik, P. Spanik, and N. D. Trip, “Zero-voltage and zero-current switching full-bridge DC-DC converter with auxiliary transformer,” IEEE Trans. Power Electron., vol. 21, no. 5, pp. 1328-1335, Sep. 2006
[11] A. K. S. Bhat, and R. Venkatraman, “A soft-switched full-bridge single-stage AC-to-DC converter with low-line-current harmonic distortion,” IEEE Trans. Ind. Electron., vol. 52, no. 4, pp. 1109-1116, Aug. 2005.
[12] Y. Jang and M. M. Jovanovic, “A new family of full-brideg ZVS converters,” IEEE Trans. Power Electron., vol. 19, no. 3, pp. 701-708, May 2004.
[13] G. B. Koo, G. W. Moon, and M. J. Youn, “Analysis and design of phase shift full bridge converter with series-connected two transformers,” IEEE Trans. Power Electron., vol. 19, no. 2, pp. 411-419, Mar. 2004.
[14] Y. Jang, M. M. Jovanovic, and Y. M. Chang, “A new ZVS-PWM full-bridge converter,” IEEE Trans. Power Electron., vol. 18, no. 5, pp. 1122-1129, Sep. 2003.
[15] M. Marx and D. Schroder, “Analysis of a zero-voltage-transition DC-DC full-bridge converter,” IEEE PESC' 95, pp. 298-303, June 1995.
[16] N. Mohan, T. M. Undeland, and W. P. Robbins, Power Electronics: Converters, Applications and Design, John Wiley and Sons, 1995.
[17] D. Li and X. Ruan, “A high efficient boost converter with power factor correction,” IEEE PESC' 04, pp. 1653-1657, June 2004.
[18] K. P. Louganski and J. S. Lai, “Current phase lead compensation in single-phase PFC boost converters with a reduced switching frequency to line frequency ratio,” IEEE Trans. Power Electron., vol. 22, no. 1, pp. 113-119, Jan. 2007.
[19] M. Chen and J. Sun, “Feedforward current control of boost single-phase PFC converters,” IEEE Trans. Power Electron., vol. 21, no. 2, pp. 338-345, Mar. 2006.
[20] J. Sun, “Input impedance analysis of single-phase PFC converters,” IEEE Trans. Power Electron., vol. 20, no. 2, pp. 308-314, Mar. 2005.
[21] B. Feng and D. Xu, “1-kW PFC converter with compound active-clamping,” IEEE Trans. Power Electron., vol. 20, no. 2, pp. 324-331, Mar. 2005.
[22] F. A. Huliehel, F. C. Lee, and B. H. Cho, “Small-signal modeling of the single-phase boost high power factor converter with constant frequency control,” IEEE PESC' 92, pp. 475-482, July 1992.
[23] P. Cooke, “Modeling average current mode control,” IEEE APEC' 00, pp. 256-262, Feb. 2000.
[24] Y. Jang, M. M. Jovanovic, and D. L. Dillman, “Soft-switched PFC boost rectifier with integrated ZVS two-switch forward converter,” IEEE Trans. Power Electron., vol. 21, no. 6, pp. 1600-1606, Nov. 2006.
[25] F. S. Tsai, “Small-signal and transient analysis of a zero-voltage-switched phase-controlled PWM converter using averaged switch model,” IEEE Trans. Ind. Electron., vol. 29, no. 3, pp. 493-499, May 1993.
[26] V. Vlatovic, J. A. Sabate, and B. Ridley, “Small-signal analysis of the phase-shifted PWM converter,” IEEE Trans. Power Electron., vol. 7, no. 1, pp. 489-498, Jan. 1992.
[27] B. R. Lin, K. Huang, and D. Wang, “Analysis and implementation of full-bridge converter with curent doubler rectifier,” IEE Proc.-Electr. Power Appl., vol. 152, no. 5, pp. 1193-1202, Sep. 2005.
[28] 郭懷天, “全數位化控制的單級功因校正全橋轉換器之研製,” 碩士論文, 國立台灣科技大學電機工程系, 2007年一月.
[29] V. Vorperian, R. Tymerski, and F. C. Lee, “Equivalent circuit models for resonant and PWM switches,” IEEE Trans. Power Electron., vol. 4, no. 2, Apr. 1989, pp. 205-214.
[30] Unitrod Inc., UC3854 High Power Factor Preregulator, 1999.
[31] A. I. Pressman, Switching Power Supply Design, McGRAW-HILL, 1999.
[32] Spectrum Digital, TMS320LF2407A Evaluation Module Technical Reference, 2000.