[1] Fuel Cell Handbook, 5th Edition, EG & G Services Parsons, Inc. Science Applications International Corporation, U. S. Department of Energy, Office of Fossil Energy, National Energy Technology Laboratory, 2000. [2] Fuel Cell Handbook, 7th Edition, EG & G Services Parsons, Inc. Science Applications International Corporation, U. S. Department of Energy, Office of Fossil Energy, National Energy Technology Laboratory , 2004. [3] www.fuelcells.org [4] A. K. Rathore and P. U.R., "Analysis, Design, and Experimental Results of Novel Snubberless Bidirectional Naturally Clamped ZCS/ZVS Current-Fed Half-Bridge DC/DC Converter for Fuel Cell Vehicles," in IEEE Transactions on Industrial Electronics, [5] P. Xuewei and A. K. Rathore, "Naturally Clamped Zero-Current Commutated Soft-Switching CurrentFed Push–Pull DC/DC Converter: Analysis, Design, and Experimental Results," in IEEE Transactions on Power Electronics, vol. 30, no. 3, pp. 1318-1327, March 2015 [6] P. T. Krein, R. S. Balog and X. Geng, “High-frequency link inverter for fuel cells based on multiple carrier PWM,” IEEE Transactions on Power Electronics, Vol. 19, No. 5, September 2004, pp. 12791288. [7] E. Santi, D. Franzoni, A. Monti, D. Patterson, F. Ponci and N. Barry, “A fuel cell based domestic uninterruptible power supply,” in Proc. IEEE Applied Power Electronics Conference, 2002, pp. 605613. [8] Rathore, A. K., & Prasanna, U. R. (2012, May). Comparison of soft-switching voltage-fed and currentfed bi-directional isolated Dc/Dc converters for fuel cell vehicles. In 2012 IEEE International Symposium on Industrial Electronics (pp. 252-257). IEEE. [9] S. Aso, M. Kizaki, and Y. Nonobe, “Development of hybrid fuel cell vehicles in Toyota,” in Proc. IEEE PCC 2007, pp. 1606-1611. [10] The Ballard website. Available: http://www.ballard.com/fuel-cellapplications/bus.aspx. [11] Y. Konishi, S. Chandhaket, K. Ogura and M. Nakaoka, “Utility-Interactive High-Frequency Flyback Transformer Linked Solar Power Conditioner for renewable Energy Utilizations,” Proceedings IEEE PEDS’01, Vol. 2, 22-25 October 2001, pp. 628-632 [12] T. Shimizu, K. Wada and N. Nakamura, “A Flyback-Type Single Phase Utility Interactive Inverter with Low-Frequency Ripple Current Reduction on the DC Input for an AC Photovoltaic Module System,” Proceedings IEEE PESC’02, Vol. 3, 2002, pp. 1483-1488. [13] A. K. Rathore, A. K. S. Bhat and R. Oruganti, "A Comparison of Soft-Switched DC-DC Converters for Fuel Cell to Utility Interface Application," 2007 Power Conversion Conference - Nagoya, Nagoya, 2007, pp. 588-594. doi: 10.1109/PCCON.2007.373026 [14] Hongmei Wan, “High efficiency DC-DC converter for EV battery charger using hybrid resonant and PWM technique”, PH.D. dissertation, Dept. Elect. & Comp. Eng., Virginia Polytechnic Institute and State University, 2012. [15] Ranganathan Gurunathan, “Auxiliary Circuit Assisted Soft-switching Techniques and their Application to Power Converters,” PhD Thesis, department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada, 1999. [16] R.L. Steigerwald, “High-Frequency Resonant Transistor DC-DC Converters,” IEEE Trans. on Industrial Electronics, vol. 31, no. 2, May 1984, pp. 181-191. [17] R.L. Steigerwald, “A Comparison of Half-Bridge Resonant Converter Topologies,” IEEE Trans. on Power Electronics, vol. 3, no. 2, April 1988, pp. 174-182. [18] A. K. S. Bhat and M. M. Swamy, “Analysis of Parallel resonant Converter Operating Above Resonance,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 25, July 1989. [19] Rathore, Akshay K., Ashoka KS Bhat, and Ramesh Oruganti, “A comparison of soft-switched DC-DC converters for fuel cell to utility interface application,” in Power Conversion Conference-Nagoya (PCC'07), 2007. pp. 588-594. [20] Kong Xin, “PEM fuel cell stack modeling and design of DC/DC converter for fuel cell energy system”, PH.D. dissertation, Dept. Elect. & Comp. Eng., University of Singapore, 2008. [21] W. Xualyuan and M. Kazerani, “A Novel Maximum Power Point Tracking Method for Photovoltaic Grid-Connected Inverters,” Proceedings IEEE IECON ’03, Vol. 3, 2-6 November 2003, pp. 2332-2337. [22] B. M. T. Ho, S. H. Chung and S. Y. R. Hui, “An Integrated Inverter with maximum Power Tracking for Grid-Connected PV Systems,” Proceedings IEEE APEC’04, Vol. 3, 2004, pp. 1559-1565. [23] B. M. T. Ho and S. H. Chung, “An Integrated Inverter with maximum Power Tracking for GridConnected PV Systems,” IEEE Transactions on Power Electronics, Vol. 20, Issue 4, July 2005, pp. 953-962. [24] M. Calais, J. Myrzik, T. Spooner and V. G. Agelidis, “Inverters for Single-Phase Grid-Connected Photovoltaic Systems-An Overview,” Proceedings IEEE PESC’02, Vol. 2, 2002, pp. 1995-2000. [25] S. B. Kjaer, J. K. Pedersen and F. Blaabjerg, “Power Inverter Topologies for Photovoltaic Modules – A Review,” Proceedings IEEE IAS’02, Vol. 2, 13-18 October 2002, pp 782-788. [26] J. M. A. Myrzik and M. Calais, “String and Module Integrated Inverters for Single-Phase GridConnected Photovoltaic Systems-A Review,” Proceedings of IEEE Power Tech. Conference, Vol. 2, 23-26 June 2003.[27] S. J. Jang, C. Y. Won, B. K. Lee and J. Hur, “Fuel Cell Generation System With a New Active Clamping Current-Fed Half-Bridge Converter,” IEEE Transactions on Energy Conversion, Vol. 22,No. 2, June 2007, pp. 332-340. [28] Ranganathan Gurunathan, “Auxiliary Circuit Assisted Soft-switching Techniques and their Application to Power Converters,” PhD Thesis, department of Electrical and Computer Engineering,University of Victoria, Victoria, BC, Canada, 1999. [29] R.L. Steigerwald, “High-Frequency Resonant Transistor DC-DC Converters,” IEEE Trans. On Industrial Electronics, vol. 31, no. 2, May 1984, pp. 181-191. [30] R.L. Steigerwald, “A Comparison of Half-Bridge Resonant Converter Topologies,” IEEE Trans. On Power Electronics, vol. 3, no. 2, April 1988, pp. 174-182. [31] A. K. S. Bhat and M. M. Swamy, “Analysis of Parallel resonant Converter Operating Above Resonance,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 25, July 1989. [32] J.A. Sabate, and F.C. Lee, “Off-line application of the fixed-frequency clamped-mode series resonant converter,” IEEE Trans. on Power Electronics, vol. 1, no. 1, January 1991, pp. 39-47. [33] P. Xuewei and A. K. Rathore, "Novel Bidirectional Snubberless Naturally Commutated SoftSwitching Current-Fed Full-Bridge Isolated DC/DC Converter for Fuel Cell Vehicles," in IEEE Transactions on Industrial Electronics, vol. 61, no. 5, pp. 2307-2315, May 2014. [34] A. K. Rathore and P. U.R., "Analysis, Design, and Experimental Results of Novel Snubberless Bidirectional Naturally Clamped ZCS/ZVS Current-Fed Half-Bridge DC/DC Converter for Fuel Cell Vehicles," in IEEE Transactions on Industrial Electronics [35] P. Xuewei and A. K. Rathore, "Naturally Clamped Zero-Current Commutated Soft-Switching CurrentFed Push–Pull DC/DC Converter: Analysis, Design, and Experimental Results," in IEEE Transactions on Power Electronics, vol. 30, no. 3, pp. 1318-1327, March 2015 [36] R. Severns and G. Bloom, Modern DC-to-DC Switchmode Power Converter Circuits, Van Nostrand Reinhold Co. New York 1985. [37] Hegazy, Omar, Joeri Van Mierlo, and Philippe Lataire, “Analysis, modeling, and implementation of a multidevice interleaved DC/DC converter for fuel cell hybrid electric vehicles,” IEEE Trans. Power Electron., vol.27, no.11, pp 4445-4458, Nov.2012. [38] M. K. Kazimierczuk, Pulse-Width Modulated DC–DC Power Converter. Hoboken, NJ: Wiley, 2008. [39] J. Lai, S. Park, S. Moon and C. L. Chen, "A High-Efficiency 5-kW Soft-Switched Power Conditioning System for Low-Voltage Solid Oxide Fuel Cells," 2007 Power Conversion Conference - Nagoya, Nagoya, 2007, pp. 463-470.doi: 10.1109/PCCON.2007.373008 [40] A. Khaligh and Z. Li, “Battery, Ultracapacitor, FuelCell, and Hybrid Energy Storage Systems for Electric, Hybrid Electric, FuelCell, and Plug-In Hybrid Electric Vehicles: State of the Art,” IEEE Trans. on Vehicular Technology, 2010, pp. 2806-2814. [41] T.-F. Wu, Y.-C. Chen, J.-G. Yang, and C.-L. Kuo, “Isolated bidirectional full-bridge DC–DC converter with a flyback snubber,” IEEE Trans. Power Electron., vol. 25, no. 7, 2010, pp. 1915–1922. [42] Bibian, S., and Jin, H., ‘High performance predictive dead-beat digital controller for DC power supplies’, IEEE Transactions on Power Electronics, 2002, 17 (3), pp. 420-426 [43] Erickson, R., Madigan, M., and Singer, S.: ‘Design of a simple high-power-factor rectifier based on the flyback converter’. in Proc IEEE Applied Power Electronics Conference and Exposition (APEC), March 1990, pp. 792-801. [44] K. R. Sree, A. K. Rathore, E. Breaz and F. Gao, "Soft-Switching Non-Isolated Current-Fed Inverter for PV/Fuel Cell Applications," in IEEE Transactions on Industry Applications, vol. 52, no. 1, pp. 351359, Jan.-Feb. 2016. [45] Venkatraman, R., and Bhat, A.K.S.: ‘Small-signal analysis of a softswitching, single-stage two-switch AC-to-DC converter’. Proc. IEEE Power Electronics Specialists Conference, June 2001, pp. 1824-1830 [46] K. Fathy, H. W. Lee, T. Mishima, and M. Nakaoka, “Boost half-bridgesingle power stage PWM DCDC converter foe small scale fuel cell stack,” in Proc. IEEE Power Energy Conf., Putra Jaya, Malaysia, 2006, pp. 426–431 [47] H. Kim, C. Yoon, and S. Choi, “An improved current-fed ZVS isolated boost converter for fuel cell applications,” IEEE Trans. Power Electron.,vol. 25, no. 9, pp. 2357–2364, Sep. 2010. [48] L. Zhu, “A Novel Soft-Commutating Isolated Boost Full-bridge ZVS-PWM DC-DC Converter for Bidirectional High-Power Applications,” IEEE Trans. Power Electron., vol. 21, no. 2, 2006, pp. 422–429. [49] E. S. Kim, K. Y. Joe, H. Y. Choi, Y. H. Kim, and Y. H. Cho, “An Improved Soft Switching Bidirectional PSPWM FB DC/DC Converter,” in Proc. IEEE IECON, 1998, pp.740 – 743. [50] Bor-Ren Lin and Chao-Hsien Tseng, “Analysis of parallel-connectedasymmetrical soft-switching converter,” IEEE Trans. Ind. Electron., vol. 54, no. 3, pp. 1642-1653, May 2008. [51] J. C. P. Liu, N. K. Poon, B. M. H. Pong and C. K. Tse, “Low output ripple dc-dc converter based on an overlapping dual asymmetric half-bridge topology,” IEEE Trans. Power Electron. vol. 22, no. 5, pp. 1956-1963, Sept. 2007. [52] B. R. Lin, J.J. Chen J.Y. Dong, “Analysis and implementation of an interleaved soft switching converter”, IET Proceedings – Power Electronics, vol. 4, no. 6, pp. 663-673, 2011. [53] P. Das, B. Laan, S. A. Mousavi, and G. Moschopoulos, “A Nonisolated Bidirectional ZVS-PWM Active Clamped DC–DC Converter,” IEEE Trans. Power Electron. vol. 24, no. 2, pp. 553-558, Feb. 2009. [54] Jong-Jae Lee and Bong-Hwan Kwon, “Active-Clamped Ripple-Free DC/DC Converter Using an Input–Output Coupled Inductor,” IEEE Trans. Ind. Electron., vol. 55, no. 4, pp. 1842-1854, April 2008. [55] G. B. Koo, G. W. Moon and M. J. Youn, “New zero-voltage-switching phase-shift full-bridge converter with low conduction losses,” IEEE Trans. Ind. Electron., vol. 52, no. 1, pp. 28-235, Jan. 2005. R. Steigerwald, “A comparison of half bridge resonant converter Topologies’ in Proceedings of IEEE IAS, pp. 135-144, 1987. [56] R. Steigerwald, “A comparison of half bridge resonant converter Topologies’ in Proceedings of IEEE IAS, pp. 135-144, 1987. [57] K. H. Yi, and G. W. Moon, “Novel two-phase interleaved LLC series resonant converter using a phase of the resonant capacitor,” IEEE Trans. Ind. Electron., vol. 56, no. 5, pp. 1815-1819, May 2009. [58] B. Yang, F. C. Lee, A. J. Zhang and G. Huang, “LLC resonant. converter for front end DC/DC conversion,” in Proc. of IEEE APEC, vol. 2, pp. 1108 – 1112, 2002. [59] D. Fu, Y. Liu, F. C. Lee, and M. Xu, “A novel driving scheme for synhronous rectifiers in LLC resonant converters,” IEEE Trans. Power Electron., vol. 24, no. 5, pp. 1321-1329, October 2009. [60] B. R. Lin and S. F. Wu, “Implementation of a series resonant converter with series–parallel transformers”, IET Proceedings – Power Electronics, vol. 4, no. 8, pp. 919-926, 2011.