Optimal Design Methodology of Zero-Voltage-Switching Full-Bridge Pulse Width Modulated Converter for Server Power Supplies Based on Self-driven Synchronous Rectifier Performance

- Journal title : Journal of Power Electronics
- Volume 16, Issue 1, 2016, pp.121-132
- Publisher : The Korean Institute of Power Electronics
- DOI : 10.6113/JPE.2016.16.1.121

Title & Authors

Optimal Design Methodology of Zero-Voltage-Switching Full-Bridge Pulse Width Modulated Converter for Server Power Supplies Based on Self-driven Synchronous Rectifier Performance

Cetin, Sevilay;

Cetin, Sevilay;

Abstract

In this paper, high-efficiency design methodology of a zero-voltage-switching full-bridge (ZVS-FB) pulse width modulation (PWM) converter for server-computer power supply is discussed based on self-driven synchronous rectifier (SR) performance. The design approach focuses on rectifier conduction loss on the secondary side because of high output current application. Various-number parallel-connected SRs are evaluated to reduce high conduction loss. For this approach, the reliability of gate control signals produced from a self-driver is analyzed in detail to determine whether the converter achieves high efficiency. A laboratory prototype that operates at 80 kHz and rated 1 kW/12 V is built for various-number parallel combination of SRs to verify the proposed theoretical analysis and evaluations. Measurement results show that the best efficiency of the converter is 95.16%.

Keywords

Full bridge converter;High efficiency;Self-driver;Synchronous rectifier;Zero-voltage switching;

Language

English

References

1.

U. Badstuebner, J. Biela, D. Christen, and J. W. Kolar, “Optimization of a 5-kW telecom phase-shift DC–DC converter with magnetically integrated current doubler,” IEEE Trans. Ind. Electron., Vol. 58, No. 10, pp. 4736-4745, Oct. 2011.

2.

U. Badstuebner, J. Biela, and J. W. Kolar, "An optimized, 99 % efficient, 5kW, phase-shift PWM DC-DC converter for data centers and telecom applications," in Proc. Applied Power Electronics Conference and Exposition (APEC), pp. 773-780, 2010.

3.

J. Biela, U. Badstuebner, and J. W. Kolar, “Design of a 5-kW, 1-U, 10-kW/dm3 resonant DC–DC converter for telecom applications,” IEEE Trans. Power Electron., Vol. 24, No. 7, pp. 1701-1710, Jul. 2009.

4.

J. Biela, U. Badstuebner, and J.W. Kolar, “Impact of power density maximization on efficiency of DC–DC converter systems,” IEEE Trans. Power Electron., Vol. 24, No. 1, pp. 288-300, Jul. 2009.

5.

J.W. Kolar, U. Drofenik, J. Biela, M. Heldwein, H. Ertl, T. Friedli, and S. Round, “PWM converter power density barriers,” IEEJ Trans. Ind. Appl., Vol. 128, No. 4, pp. 468-480, Jan. 2008.

6.

S. Cetin, “High efficiency design considerations for the self-driven synchronous rectified phase shifted full bridge converters of server power systems,” Journal of Power Electronics, Vol. 15, No. 3, pp.634-643, May 2015.

7.

D. M. Sable and F. C. Lee, "The operation of a full-bridge zero-voltage switched, PWM converter," in Proc. VPEC Semin., pp. 92-97, 1989.

8.

C. Zhao, X. Wu, P. Meng, Z. Qian, “Optimum design consideration and implementation of a novel synchronous rectified soft-switched phase-shift full-bridge converter for low-output-voltage high-output-current applications,” IEEE Trans. Power Electron., Vol. 24, No. 2, pp. 388-397, Feb. 2009.

9.

J.M. Zhang, X.G. Xie, D.Z. Jiao, and Z. Qian, "A high efficiency adapter with novel current driven synchronous rectifier," in Proc. Telecommunications Energy Conference, pp. 205-210, 2003.

10.

X. Wu, J. Zhang, X. Xie, and Z. Qian, “Analysis and optimal design considerations for an improved full bridge ZVS DC-DC converter with high efficiency,” EEE Trans. Power Electron., Vol. 21, No. 5, pp. 1225-1234, Sep. 2006.

11.

J. Zhang, F. Zhang, X. Xie, D. Jiao, and Z. Qian, “A novel ZVS DC/DC converter for high power applications,” IEEE Trans. Power Electron., Vol. 19, No. 2, pp. 420-429, Mar. 2004.

12.

B. Yang, "Topology investigation for front end DC/DC power conversion for distributed power system," Ph.D. Dissertation, Virginia Polytechnic Inst. State Univ. (Virginia Tech), Blacksburg/USA, 2003.

13.

S. Cetin "Performance analysis of a self-driven phase shifted full bridge converter for data center application," in Proc. Advance in Engineering Mechanics and Materials, pp. 41-47, 2014.

14.

R. Watson and F. C. Lee, “Analysis, design, and experimental results of a 1-kW ZVS-FB-PWM converter employing magamp secondary-side control,” IEEE Trans. Ind. Electron., Vol. 45, No. 5, pp. 806-813, Oct. 1998.

15.

R. Redl, N. O. Sokal, and L. Balogh, “A novel soft-switching full-bridge DC/DC converter: analysis, design considerations, and experimental results at 1.5 kW, 100 kHz,” IEEE Trans. Power Electron., Vol. 6, No. 3, pp.408-418, Jul. 1991.

16.

R. Redl, L. Balogh, and D. W. Edwards, "Switch transitions in the soft switching full-bridge PWM phase-shift DC/DC converter: analysis and improvements," in Proc. IEEE-INTELEC, pp. 350-358, 1993.

17.

K. Jin, M. Xu, Y. Sun, D. Sterk, and F. C. Lee, “Evaluation of self-driven schemes for a 12-V self-driven voltage regulator,” IEEE Trans. Power Electron., Vol. 24, No. 10, pp. 2314-2322, Oct. 2009.

18.

M. Xu, Y. Ren, J. Zhou, and F.C. Lee, “1-MHz self-driven ZVS full-bridge converter for 48-V power pod and DC/DC Brick,” IEEE Trans. Power Electron., Vol. 20, No. 5, pp. 997-1006, Sep. 2005.

19.

X. Xie, J. C. P. Liu, F. N. K. Poon, and M. H. Pong, “A novel high frequency current-driven synchronous rectifier applicable to most switching topologies,” IEEE Trans. Power Electron., Vol. 16, No. 5, pp. 635-648, Sep. 2001.

20.

P. Alou, J. A. Cobos, O. García, R. Prieto, and J. Uceda, “A new driving scheme for synchronous rectifiers: single winding self-driven synchronous rectification,” IEEE Trans. Power Electron., Vol. 16, No. 6, pp. 803-811, Nov. 2001.

21.

A. Fernández, J. Sebastián, M. M. Hernando, P. Villegas, and J. García,"New self-driven synchronous rectification system for converters with a symmetrically driven transformer," in Proc. IEEE Appl. Power Electron. Conf., pp. 352-358, 2003.

22.

A. Fernández, J. Sebastián, M. M. Hernando, and D.G. Lamar, "Self-driven synchronous rectification system for converters with symmetrically driven transformer based on the use of the output inductor," in Proc. IEEE Appl. Power Electron. Conf., pp. 763-769, 2006.

23.

S. Cetin, “Self-driven phase shifted full bridge converter for telecom applications,” Recent Advance in Electrical Engineering, Vol. 15, No. 17, pp. 196-203, Dec. 2014.