[1] https://www.carbonbrief.org/analysis-fossil-fuel-emissions-in-2018-increasing-at-fastest-rate-for-seven-years. [2] https://www.weforum.org/agenda/2020/04/coronavirus-lockdowns-air-pollution [3] B. Bilgin et al., "Making the Case for Electrified Transportation," in IEEE Transactions on Transportation Electrification, vol. 1, no. 1, pp. 4-17, June 2015, doi: 10.1109/TTE.2015.2437338. [4] U.S. Environmental Protection Agency (EPA). Regulations and Standards: Light-Duty [Online]. Available: http://www.epa.gov/, accessed on Jan. 12, 2015. [5] Henriques, M., 2020. Will Covid-19 Have A Lasting Impact On The Environment?. [online] Bbc.com. Available at: [Accessed 15 May 2020]. [6] BBC News. 2020. Polluting Gases Fall Rapidly As Coronavirus Spreads. [online] Available at: [Accessed 15 May 2020]. [7] pwc.com. Five trends transforming the Automotive Industry. accessed on May. 15, 2020. [Online]. Available: https://www.pwc.com/hu/hu/kiadvanyok/assets/pdf/five_trends_transforming_the_automotive_industry.pdf. [8] B. Lequesne, "Automotive Electrification: The Nonhybrid Story," in IEEE Transactions on Transportation Electrification, vol. 1, no. 1, pp. 40-53, June 2015, doi: 10.1109/TTE.2015.2426573. [9] A. Cook, “The road to electrification for specialty vehicles,” in Vehicular Electronics and Safety, 2008. ICVES 2008. IEEE International Conference on, pp. 103–107, Sept 2008. [10] F. Shang, G. Niu and M. Krishnamurthy, "Design and Analysis of a High-Voltage-Gain Step-Up Resonant DC–DC Converter for Transportation Applications," in IEEE Transactions on Transportation Electrification, vol. 3, no. 1, pp. 157-167, March 2017, doi: 10.1109/TTE.2017.2656145. [11] J. ping Zhu, J. ping Zhou, and H. Zhang, “Research progress of ac, dc and their hybrid micro-grids," in Proc. IEEE International Conference on System Science and Engineering (ICSSE), pp. 158-161, July 2014. [12] R. Sathishkumar, S. K. Kollimalla, and M. K. Mishra, Dynamic energy management of micro grids using battery super capacitor combined storage," in Proc. Annual IEEE India Conference (INDICON), pp. 1078{1083, Dec 2012. [13] S. D. G. Jayasinghe, D. M. Vilathgamuwa, and U. K. Madawala, A new method of interfacing battery/supercapacitor energy storage systems for distributed energy sources," in Proc. IPEC, pp. 121-1216, Oct 2010. [14] M. H. Nehrir, C. Wang, and S.R. Shaw, “Fuel cells: promising devices for distributed generation,” IEEE Power and Energy Magazine, Vol. 4, No. 1, pp. 47-53, Jan.-Feb. 2006. [15] Y. P. Siwakoti et al., "High-Voltage Gain Quasi-SEPIC DC–DC Converter," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 7, no. 2, pp. 1243-1257, June 2019, doi: 10.1109/JESTPE.2018.2859425. [16] V. Sheeja and R. Kalpana, "Interleaved High voltage gain Bidirectional DC-DC Converter for Grid Integrated Solar PV Fed Telecommunication BTS Load," 2018 8th IEEE India International Conference on Power Electronics (IICPE), JAIPUR, India, 2018, pp. 1-6, doi: 10.1109/IICPE.2018.8709522. [17] https://www.energy.gov/eere/fuelcells/fuel cells [18] M. Forouzesh, Y. Shen, K. Yari, Y. P. Siwakoti and F. Blaabjerg, "High-Efficiency High Step-Up DC–DC Converter With Dual Coupled Inductors for Grid-Connected Photovoltaic Systems," in IEEE Transactions on Power Electronics, vol. 33, no. 7, pp. 5967-5982, July 2018, doi: 10.1109/TPEL.2017.2746750. [19] Boeke, U.; Ott, L., Impact of a ±380 V DC Power Grid Infrastructure on Commercial Building Energy Profiles. DCC+G White Paper. [Online]. Available: http://dcgrid.tue.nl/files/2014-04-28_DCC+G-White_PaperBuilding_profiles_and_impact_by_DC_grids.pdf (accesed 09 Apr. 2015). [20] https://www.solarreviews.com/blog/do-you-wire-solar-panels-series-or-parallel [21] understanding common mode noise. [Online]. Available: https://www.pulseelectronics.com/wp-content/uploads/2016/12/G019.pdf (accesed 24 Jul. 2020) [22] S. Manikandan and S. Venkatasubramanian, \Implementation of high effciency current - fed push- pull converter using soft switching technique," in Proc. International Conference on Computing, Electronics and Electrical Technologies (ICCEET), pp. 273{278, March 2012. [23] J. Ying, Q. Zhu, H. Lin, and Z. Wu, \A zero-voltage-switching (zvs) push-pull dc/dc converter for ups," in Proc. Fifth International Conference on Power Electronics and Drive Systems (PEDS), vol. 2, pp. 1495{1499 Vol.2, Nov 2003. [24] S. D. Johnson, A. F. Witulski, and R. W. Erickson, “Comparison of resonant topologies in high-voltage DC applications,” IEEE Trans. Aerosp. Electron. Syst., vol. 24, no. 3, pp. 263–274, May 1988. [25] M. T. Outeiro, G. Buja, and D. Czarkowski, “Resonant Power Converters: An Overview with Multiple Elements in the Resonant Tank Network,” IEEE Ind. Electron. Mag., vol. 10, no. 2, pp. 21–45, Jun. 2016. [26] M. Forouzesh, Y. P. Siwakoti, S. A. Gorji, F. Blaabjerg, and B. Lehman, “Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications,” IEEE Trans. Power Electron., vol. 32, no. 12, pp. 9143–9178, Dec. 2017. [27] R. L. Steigerwald, “A comparison of half-bridge resonant converter topologies,” IEEE Trans. Power Electron., vol. 3, no. 2, pp. 174–182, Apr. 1988. [28] W. A. Tabisz and F. C. Lee, “Principles of quasi- and multi-resonant power conversion techniques,” in 1991., IEEE International Sympoisum on Circuits and Systems, 1991, pp. 1053–1056 vol.2. [29] K.-H. Liu and F. C. Y. Lee, “Zero-voltage switching technique in DC/DC converters,” IEEE Trans. Power Electron., vol. 5, no. 3, pp. 293–304, Jul. 1990. [30] K.-H. Liu and F. C. Lee, “Resonant Switches - A Unified Approach to Improve Performances of Switching Converters,” in IN℡EC ’84 - International Telecommunications Energy Conference, 1984, pp. 344–351. [31] T.-F. Wu, Y.-K. Chen, C.-H. Yang, and S.-A. Liang, “A structural approach to synthesizing and analyzing quasi-resonant and multi-resonant converters,” in 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321), 1999, vol. 2, pp. 1024–1029 vol.2. [32] M. F. Schlecht and L. F. Casey, “Comparison of the square-wave and quasi-resonant topologies,” IEEE Trans. Power Electron., vol. 3, no. 1, pp. 83–92, Jan. 1988. [33] Xing-Zhu Zhang and Shi-Peng Huang, “Novel high frequency quasi-square-wave converter topologies,” in [Proceedings] Thirteenth International Telecommunications Energy Conference - IN℡EC 91, 1991, pp. 663–667. [34] D. Maksimovic and S. Cuk, “A general approach to synthesis and analysis of quasi-resonant converters,” IEEE Trans. Power Electron., vol. 6, no. 1, pp. 127–140, Jan. 1991. [35] S. W. Anderson, R. W. Erickson, and R. A. Martin, “An improved automotive power distribution system using nonlinear resonant switch converters,” IEEE Trans. Power Electron., vol. 6, no. 1, pp. 48–54, Jan. 1991. [36] R. W. Erickson, A. F. Hernandez, A. F. Witulski, and R. Xu, “A nonlinear resonant switch,” in 20th Annual IEEE Power Electronics Specialists Conference, 1989, pp. 43–50 vol.1. [37] W. A. Tabisz and F. C. Lee, “DC analysis and design of zero-voltage-switched multi-resonant converters,” in 20th Annual IEEE Power Electronics Specialists Conference, 1989, pp. 243–251 vol.1. [38] W. A. Tabisz and F. C. Y. Lee, “Zero-voltage-switching multiresonant technique-a novel approach to improve performance of high-frequency quasi-resonant converters,” IEEE Trans. Power Electron., vol. 4, no. 4, pp. 450–458, Oct. 1989. [39] F. Nuno, J. Diaz, J. Sebastian, and J. Lopera, “A unified analysis of multi-resonant converters,” in PESC ’92 Record. 23rd Annual IEEE Power Electronics Specialists Conference, 1992, pp. 822–829 vol.2. [40] R. Farrington, M. M. Jovanovic, and F. C. Lee, “Constant-frequency zero-voltage-switched multi-resonant converters: analysis, design, and experimental results,” in 21st Annual IEEE Conference on Power Electronics Specialists, 1990, pp. 197–205. [41] K. T. Chau, T. W. Ching, and C. C. Chan, “Constant-frequency multi-resonant converter-fed DC motor drives,” in 22nd International Conference on Industrial Electronics, Control, and Instrumentation Proceedings of the 1996 IEEE IECON, 1996, vol. 1, pp. 78–83 vol.1. [42] J. Zhang, X. Huang, X. Wu, and Z. Qian, “A High Efficiency Flyback Converter With New Active Clamp Technique,” IEEE Trans. Power Electron., vol. 25, no. 7, pp. 1775–1785, Jul. 2010. [43] C. Wang, S. Xu, S. Lu, and W. Sun, “An accurate design method of RCD circuit for flyback converter considering diode reverse recovery,” in 2016 IEEE International Conference on Industrial Technology (ICIT), 2016, pp. 269–274. [44] K. Yoshida, T. Ishii, and N. Nagagata, “Zero voltage switching approach for flyback converter,” in [Proceedings] Fourteenth International Telecommunications Energy Conference - IN℡EC ’92, 1992, pp. 324–329. [45] H. C. M. Jr, “Topology for miniature power supply with low voltage and low ripple requirements,” US4618919A, 21-Oct-1986. [46] C. P. Henze, H. C. Martin, and D. W. Parsley, “Zero-voltage switching in high frequency power converters using pulse width modulation,” in APEC ’88 Third Annual IEEE Applied Power Electronics Conference and Exposition, 1988, pp. 33–40. [47] R. Watson, G. C. Hua, and F. C. Lee, “Characterization of an active clamp flyback topology for power factor correction applications,” in Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC’94, 1994, pp. 412–418 vol.1. [48] K. Harada and H. Sakamoto, “Switched snubber for high frequency switching,” in 21st Annual IEEE Conference on Power Electronics Specialists, 1990, pp. 181–188. [49] R. Watson, F. C. Lee, and G. C. Hua, “Utilization of an active-clamp circuit to achieve soft switching in flyback converters,” IEEE Trans. Power Electron., vol. 11, no. 1, pp. 162–169, Jan. 1996. [50] L. Xue and J. Zhang, “Highly Efficient Secondary-Resonant Active Clamp Flyback Converter,” IEEE Trans. Ind. Electron., vol. 65, no. 2, pp. 1235–1243, Feb. 2018. [51] H. Tarzamni, E. Babaei, and A. Z. Gharehkoushan, “A Full Soft-Switching ZVZCS Flyback Converter Using an Active Auxiliary Cell,” IEEE Trans. Ind. Electron., vol. 64, no. 2, pp. 1123–1129, Feb. 2017. [52] A. Isurin and A. Cook, “A novel resonant converter topology and its application,” in 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230), 2001, vol. 2, pp. 1039–1044 vol.2. [53] H.-L. Do, “Asymmetrical Full-bridge Converter With High-Voltage Gain,” IEEE Trans. Power Electron., vol. 27, no. 2, pp. 860–868, Feb. 2012. [54] S. S. Dobakhshari, S. H. Fathi, A. Banaiemoqadam, and J. S. Moghani, “A new current-fed high step-up quasi-resonant DC-DC converter with voltage quadrupler,” in 2016 7th Power Electronics and Drive Systems Technologies Conference (PEDSTC), 2016, pp. 197–202. [55] S. Salehi Dobakhshari, J. Milimonfared, M. Taheri, and H. Moradisizkoohi, “A Quasi-Resonant Current-Fed Converter With Minimum Switching Losses,” IEEE Trans. Power Electron., vol. 32, no. 1, pp. 353–362, Jan. 2017. [56] Jianhong Zeng, Jianping Ying, and Qingyou Zhang, “A novel DC/DC ZVS converter for battery input application,” in APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2002, vol. 2, pp. 892–896 vol.2. [57] B. York, W. Yu, and J.-S. Lai, “An Integrated Boost Resonant Converter for Photovoltaic Applications,” IEEE Trans. Power Electron., vol. 28, no. 3, pp. 1199–1207, Mar. 2013. [58] K.-B. Park, G.-W. Moon, and M.-J. Youn, “High Step-up Boost Converter Integrated With a Transformer-Assisted Auxiliary Circuit Employing Quasi-Resonant Operation,” IEEE Trans. Power Electron., vol. 27, no. 4, pp. 1974–1984, Apr. 2012. [59] Chansoo Park, S. Choi, and Jeong-min Lee, “Quasi-resonant boost-half-bridge converter with reduced turn-off switching losses for 16V fuel cell application,” in Proceedings of The 7th International Power Electronics and Motion Control Conference, 2012, vol. 3, pp. 1960–1964. [60] B. Yuan, X. Yang, and D. Li, “A high efficiency current fed multi-resonant converter for high step-up power conversion in renewable energy harvesting,” in 2010 IEEE Energy Conversion Congress and Exposition, 2010, pp. 2637–2641. [61] J.-F. Chen, R.-Y. Chen, and T.-J. Liang, “Study and Implementation of a Single-Stage Current-Fed Boost PFC Converter With ZCS for High Voltage Applications,” IEEE Trans. Power Electron., vol. 23, no. 1, pp. 379–386, Jan. 2008. [62] A. K. Rathore, A. K. S. Bhat and R. Oruganti, "Analysis, Design and Experimental Results of Wide Range ZVS Active-Clamped L-L Type Current-Fed DC/DC Converter for Fuel Cells to Utility Interface," in IEEE Transactions on Industrial Electronics, vol. 59, no. 1, pp. 473-485, Jan. 2012, doi: 10.1109/TIE.2011.2146214. [63] K. R. Sree and A. K. Rathore, “Impulse Commutated Zero-Current Switching Current-Fed Push–Pull Converter: Analysis, Design, and Experimental Results,” IEEE Trans. Ind. Electron., vol. 62, no. 1, pp. 363–370, Jan. 2015. [64] K. R. Sree and A. K. Rathore, “Analysis and Design of Impulse-Commutated Zero-Current-Switching Single-Inductor Current-Fed Three-Phase Push–Pull Converter,” IEEE Trans. Ind. Appl., vol. 53, no. 2, pp. 1517–1526, Mar. 2017. [65] “Soft-Switching Current-Fed Push–Pull Converter for 250-W AC Module Applications - IEEE Journals & Magazine.”. [66] K. R. Sree and A. K. Rathore, “Impulse Commutated High-Frequency Soft-Switching Modular Current-Fed Three-Phase DC/DC Converter for Fuel Cell Applications,” IEEE Trans. Ind. Electron., vol. 64, no. 8, pp. 6618–6627, Aug. 2017. [67] K. R. Sree and A. K. Rathore, “Impulse-Commutated Zero-Current-Switching Current-Fed Three-Phase DC/DC Converter,” IEEE Trans. Ind. Appl., vol. 52, no. 2, pp. 1855–1864, Mar. 2016. [68] X. Tan and X. Ruan, “Equivalence Relations of Resonant Tanks: A New Perspective for Selection and Design of Resonant Converters,” IEEE Trans. Ind. Electron., vol. 63, no. 4, pp. 2111–2123, Apr. 2016. [69] S.-Y. Yu, R. Chen, and A. Viswanathan, “Survey of Resonant Converter Topologies,” p. 26. [70] Bo Yang, F. C. Lee, A. J. Zhang, and Guisong Huang, “LLC resonant converter for front end DC/DC conversion,” in APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2002, vol. 2, pp. 1108–1112 vol.2. [71] V. Vorperian and S. Cuk, “A complete DC analysis of the series resonant converter,” in 1982 IEEE Power Electronics Specialists conference, 1982, pp. 85–100. [72] R. Oruganti and F. C. Lee, “Resonant Power Processors, Part I—State Plane Analysis,” IEEE Trans. Ind. Appl., vol. IA-21, no. 6, pp. 1453–1460, Nov. 1985. [73] R. Oruganti and F. C. Lee, “Resonant Power Processors, Part II-Methods of Control,” IEEE Trans. Ind. Appl., vol. IA-21, no. 6, pp. 1461–1471, Nov. 1985. [74] I. J. Pitel, “Phase-Modulated Resonant Power Conversion Techniques for High-Frequency Link Inverters,” IEEE Trans. Ind. Appl., vol. IA-22, no. 6, pp. 1044–1051, Nov. 1986. [75] J. A. Sabate and F. C. Y. Lee, “Offline application of the fixed-frequency clamped-mode series resonant converter,” IEEE Trans. Power Electron., vol. 6, no. 1, pp. 39–47, Jan. 1991. [76] Fu-Sheng Tsai, P. Materu, and F. C. Y. Lee, “Constant-frequency clamped-mode resonant converters,” IEEE Trans. Power Electron., vol. 3, no. 4, pp. 460–473, Oct. 1988. [77] J. P. Agrawal, S. H. Kim, and C. Q. Lee, “Capacitor voltage clamped series resonant power supply with improved cross regulation,” in Conference Record of the IEEE Industry Applications Society Annual Meeting, 1989, pp. 1141–1146 vol.1. [78] F.-S. Tsai and F. C. Lee, “A complete DC characterization of a constant-frequency, clamped-mode, series-resonant converter,” in PESC ’88 Record., 19th Annual IEEE Power Electronics Specialists Conference, 1988, pp. 987–996 vol.2. [79] V. T. Ranganathan, P. D. Ziogas, and V. R. Stefanovic, “A Regulated DC-DC Voltage Source Converter Using a High Frequency Link,” IEEE Trans. Ind. Appl., vol. IA-18, no. 3, pp. 279–287, May 1982. [80] A. K. S. Bhat and M. M. Swamy, “Analysis of parallel resonant converter operating above resonance,” IEEE Trans. Aerosp. Electron. Syst., vol. 25, no. 4, pp. 449–458, Jul. 1989. [81] R. L. Steigerwald, “High-Frequency Resonant Transistor DC-DC Converters,” IEEE Trans. Ind. Electron., vol. IE-31, no. 2, pp. 181–191, May 1984. [82] F.-S. Tsai, J. Sabate, and F. C. Lee, “Constant-frequency, zero-voltage-switched, clamped-mode parallel-resonant converter,” in Conference Proceedings., Eleventh International Telecommunications Energy Conference, 1989, pp. 16.4/1-16.4/7 vol.2. [83] A. K. S. Bhat and S. B. Dewan, “Analysis and Design of a High-Frequency Resonant Converter Using LCC-Type Commutation,” IEEE Trans. Power Electron., vol. PE-2, no. 4, pp. 291–301, Oct. 1987. [84] J. Biela, U. Badstuebner, and J. W. Kolar, “Design of a 5-kW, 1-U, 10-kW/dm$^\hbox3$ Resonant DC–DC Converter for Telecom Applications,” IEEE Trans. Power Electron., vol. 24, no. 7, pp. 1701–1710, Jul. 2009. [85] J. A. Martin-Ramos, A. M. Pernia, J. Diaz, F. Nuno, and J. A. Martinez, “Power Supply for a High-Voltage Application,” IEEE Trans. Power Electron., vol. 23, no. 4, pp. 1608–1619, Jul. 2008. [86] J. A. Martin-Ramos, J. Diaz, A. M. Pernia, J. M. Lopera, and F. Nuno, “Dynamic and Steady-State Models for the PRC-LCC Resonant Topology With a Capacitor as Output Filter,” IEEE Trans. Ind. Electron., vol. 54, no. 4, pp. 2262–2275, Aug. 2007. [87] H. I. Sewell, M. P. Foster, C. M. Bingham, D. A. Stone, D. Hente, and D. Howe, “Analysis of voltage output LCC resonant converters, including boost mode operation,” IEE Proc. - Electr. Power Appl., vol. 150, no. 6, pp. 673–679, Nov. 2003. [88] G. Ivensky, A. Kats, and S. Ben-Yaakov, “An RC load model of parallel and series-parallel resonant DC-DC converters with capacitive output filter,” IEEE Trans. Power Electron., vol. 14, no. 3, pp. 515–521, May 1999. [89] A. K. S. Bhat, “A fixed-frequency modified series-resonant converter: analysis, design, and experimental results,” IEEE Trans. Power Electron., vol. 10, no. 6, pp. 766–775, Nov. 1995. [90] V. Garcia, M. Rico, J. Sebastian, M. M. Hernando, and J. Uceda, “An optimized DC-to-DC converter topology for high-voltage pulse-load applications,” in Proceedings of 1994 Power Electronics Specialist Conference - PESC’94, 1994, vol. 2, pp. 1413–1421 vol.2. [91] A. K. S. Bhat, “Fixed-frequency PWM series-parallel resonant converter,” IEEE Trans. Ind. Appl., vol. 28, no. 5, pp. 1002–1009, Sep. 1992. [92] A. K. S. Bhat, “Analysis and design of LCL-type series resonant converter,” in 12th International Conference on Telecommunications Energy, 1990, pp. 172–178. [93] A. K. S. Bhat, “A fixed frequency LCL-Type series resonant converter,” IEEE Trans. Aerosp. Electron. Syst., vol. 31, no. 1, pp. 125–137, Jan. 1995. [94] A. K. S. Bhat, “Analysis and design of a fixed-frequency LCL-type series-resonant converter with capacitive output filter,” IEE Proc. - Circuits Devices Syst., vol. 144, no. 2, pp. 97–103, Apr. 1997. [95] M. Borage, S. Tiwari, and S. Kotaiah, “LCL-T Resonant Converter With Clamp Diodes: A Novel Constant-Current Power Supply With Inherent Constant-Voltage Limit,” IEEE Trans. Ind. Electron., vol. 54, no. 2, pp. 741–746, Apr. 2007. [96] M. Borage, S. Tiwari, and S. Kotaiah, “Analysis and design of an LCL-T resonant converter as a constant-current power supply,” IEEE Trans. Ind. Electron., vol. 52, no. 6, pp. 1547–1554, Dec. 2005. [97] W. Sun, Y. Xing, H. Wu, and J. Ding, “Modified High-Efficiency LLC Converters With Two Split Resonant Branches for Wide Input-Voltage Range Applications,” IEEE Trans. Power Electron., vol. 33, no. 9, pp. 7867–7879, Sep. 2018. [98] W. Sun, Y. Xing, H. Wu, and J. Ding, “Modified High-Efficiency LLC Converters With Two Split Resonant Branches for Wide Input-Voltage Range Applications,” IEEE Trans. Power Electron., vol. 33, no. 9, pp. 7867–7879, Sep. 2018. [99] A. Bucher and T. Duerbaum, “Extended first harmonic approximation in case of LLCC converters with capacitive output filter,” in Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference, 2010, pp. 1303–1308. [100] N. Shafiei, M. Pahlevaninezhad, H. Farzanehfard, and S. R. Motahari, “Analysis and Implementation of a Fixed-Frequency $LCLC$ Resonant Converter With Capacitive Output Filter,” IEEE Trans. Ind. Electron., vol. 58, no. 10, pp. 4773–4782, Oct. 2011. [101] “IEEE Xplore Full-Text PDF:” [Online]. Available: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5530404. [Accessed: 01-Nov-2019]. [102] I. Boonyaroonate and S. Mori, “A new ZVCS resonant push-pull DC/DC converter topology,” in APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), Dallas, TX, USA, 2002, vol. 2, pp. 1097–1100. [103] [41] M. J. Ryan, W. E. Brumsickle, D. M. Divan, and R. D. Lorenz, “A new ZVS LCL-resonant push-pull DC-DC converter topology,” IEEE Trans. Ind. Appl., vol. 34, no. 5, pp. 1164–1174, Oct. 1998. [104] “Analysis and design of a current-fed zero-voltage-switching and zero-current-switching CL-resonant push-pull dc-dc converter - IET Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/document/5160812. [Accessed: 01-Nov-2019]. [105] M. K. Kazimierczuk and A. Abdulkarim, “Current-source parallel-resonant DC/DC converter,” IEEE Trans. Ind. Electron., vol. 42, no. 2, pp. 199–208, Apr. 1995. [106] T. S. Sasmal and P. Sensarma, “A New Current Source based Resonant Tank for Switch Stress Reduction in DC-DC Converter,” in 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018, pp. 1–6. [107] A. A. G. Vishal, K. Basu, and R. Gurunathan, “Resonance based Current-fed Isolated DC/ DC Converter for High Voltage Applications,” in 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018, pp. 1–6. [108] P. J. Wolfs, “A current-sourced DC-DC converter derived via the duality principle from the half-bridge converter,” IEEE Trans. Ind. Electron., vol. 40, no. 1, pp. 139–144, Feb. 1993. [109] “Analysis and design of Boost-LLC converter for high power density AC-DC adapter - IEEE Conference Publication.” [Online]. Available: https://ieeexplore.ieee.org/document/6579066. [Accessed: 01-Nov-2019]. [110] I. Barbi and R. Gules, “Isolated DC-DC converters with high-output voltage for TWTA telecommunication satellite applications,” IEEE Trans. Power Electron., vol. 18, no. 4, pp. 975–984, Jul. 2003. [111] “Analysis of Split-Capacitor Push–Pull Parallel-Resonant Converter in Boost Mode - IEEE Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/document/4403214. [Accessed: 01-Nov-2019]. [112] “High step-up resonant push-pull converter with high efficiency - IET Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/document/4723939. [Accessed: 01-Nov-2019]. [113] [51] “High-Efficiency Fuel Cell Power Conditioning System With Input Current Ripple Reduction - IEEE Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/document/4663956. [Accessed: 01-Nov-2019]. [114] “A High-Efficiency Step-Up Current-Fed Push–Pull Quasi-Resonant Converter With Fewer Components for Fuel Cell Application - IEEE Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/document/7781594/references#references. [Accessed: 01-Nov-2019]. [115] B.-R. Lin and Y. Lin, “Parallel current-fed resonant converter with balance current sharing and no input ripple current,” IET Power Electron., vol. 12, no. 2, pp. 212–219, 2019. [116] “Design and Analysis of a High-Voltage-Gain Step-Up Resonant DC–DC Converter for Transportation Applications - IEEE Journals & Magazine.” [Online]. Available: https://ieeexplore.ieee.org/abstract/document/7828150. [Accessed: 01-Nov-2019]. [117] D. Patii, A. K. Rathore, D. Srinivasan, and S. K. Panda, “High-frequency soft-switching LCC resonant current-fed DC/DC converter with high voltage gain for DC microgrid application,” in IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014, pp. 4293–4299. [118] A. K. Rathore, D. R. Patil, and D. Srinivasan, “Non-isolated Bidirectional Soft-Switching Current-Fed LCL Resonant DC/DC Converter to Interface Energy Storage in DC Microgrid,” IEEE Trans. Ind. Appl., vol. 52, no. 2, pp. 1711–1722, Mar. 2016. [119] P. Xuewei, U. R. Prasanna and A. Rathore, "Magnetizing-Inductance-Assisted Extended Range Soft-Switching Three-Phase AC-Link Current-Fed DC/DC Converter for Low DC Voltage Applications," in IEEE Transactions on Power Electronics, vol. 28, no. 7, pp. 3317-3328, July 2013. [120] S. S. Williamson, A. K. Rathore, and F. Musavi, “Industrial Electronics for Electric Transportation: Current State-of-the-Art and Future Challenges,” IEEE Trans. Ind. Electron., vol. 62, no. 5, pp. 3021–3032, May 2015. [121] Fang Lin Luo, “Luo-converters, voltage lift technique,” in PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), vol. 2, pp. 1783–1789. [122] J. A. Morales-Saldana, E. E. C. Guti, and J. Leyva-Ramos, “Modeling of switch-mode dc-dc cascade converters,” IEEE Trans. Aerosp. Electron. Syst., vol. 38, no. 1, pp. 295–299, Jan. 2002 [123] M. S. Makowski and D. Maksimovic, “Performance limits of switched-capacitor DC-DC converters,” in Proceedings of PESC ’95 - Power Electronics Specialist Conference, vol. 2, pp. 1215–1221. [124] M. K. Kazimierczuk and R. Cravens, II, "Current source parallel-resonant DC/AC inverter with transformer," in Telecommunications Energy Conference, 1994. INTELEC '94., 16th International, 1994, pp. 135-141 [125] D. Li, B. Liu, B. Yuan, X. Yang, J. Duan and J. Zhai, "A high step-up current fed multi-resonant converter with output voltage doubler," 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Fort Worth, TX, 2011, pp. 2020-2026. [126] Sang-Kyoo Han, Hyun-Ki Yoon, Gun-Woo Moon, Myung-Joong Youn, Yoon-Ho Kim and Kang-Hee Lee, "A new active clamping zero-voltage switching PWM current-fed half-bridge converter," in IEEE Transactions on Power Electronics, vol. 20, no. 6, pp. 1271-1279, Nov. 2005. [127] 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," in IEEE Transactions on Energy Conversion, vol. 22, no. 2, pp. 332-340, June 2007. [128] Y. G. Kang, A. K. Upadhyay and D. Stephens, "Analysis and design of a half-bridge parallel resonant converter operating above resonance," Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting, Pittsburgh, PA, USA, 1988, pp. 827-836 vol.1. [129] M. K. Kazimierczuk, "Analysis of class E zero-voltage-switching rectifier," in IEEE Transactions on Circuits and Systems, vol. 37, no. 6, pp. 747-755, Jun 1990. [130] M. Kazimierczuk and D. Czarkowski, Resonant, power converters: Wiley-Interscience, 1995 [131] C. S. Leu, P. Y. Huang and W. K. Wang, "LLC converter with Taiwan Tech center-tapped rectifier (LLC-TCT) for solar power conversion applications," 2013 1st International Future Energy Electronics Conference (IFEEC), Tainan, 2013, pp. 515-519. [132] H. D. Gui, Z. Zhang, X. F. He and Y. F. Liu, "A high voltage-gain LLC micro-converter with high efficiency in wide input range for PV applications," 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, Fort Worth, TX, 2014, pp. 637-642. [133] M. K. Kazimierczuk, "Class D voltage-switching MOSFET power amplifier," in IEE Proceedings B - Electric Power Applications, vol. 138, no. 6, pp. 285-296, Nov. 1991 [134] B. S. Nathan and V. Ramanarayanan, "Analysis, simulation and design of series resonant converter for high voltage applications," Proceedings of IEEE International Conference on Industrial Technology 2000 (IEEE Cat. No.00TH8482), Goa, India, 2000, pp. 688-693 vol.2. doi: 10.1109/ICIT.2000.854252 [135] Young-Goo Kang and A. K. Upadhyay, "Analysis and design of a half-bridge parallel resonant converter," in IEEE Transactions on Power Electronics, vol. 3, no. 3, pp. 254-265, July 1988. doi: 10.1109/63.17943 [136] A. J. Gilbert, C. M. Bingham, D. A. Stone and M. P. Foster, "Normalized Analysis and Design of LCC Resonant Converters," in IEEE Transactions on Power Electronics, vol. 22, no. 6, pp. 2386-2402, Nov. 2007. [137] A. K. S. Bhat, "Analysis and design of a series-parallel resonant converter with capacitive output filter," in IEEE Transactions on Industry Applications, vol. 27, no. 3, pp. 523-530, May-June 1991. [138] https://www.ti.com/seclit/ml/slup376/slup376.pdf [139] C. q. Lee and K. Siri, "Analysis and Design of Series Resonant Converter by State-Plane Diagram," in IEEE Transactions on Aerospace and Electronic Systems, vol. AES-22, no. 6, pp. 757-763, Nov. 1986 [140] Yang, Eric Xian-Qing, " Extended describing function method for small-signal modeling of resonant and multi-resonant converters," Ph.D dissertation, Virginia Tech., Virginia, 1994. [141] http://hdl.handle.net/10919/40173. [142] https://www.ti.com/seclit/ml/slup263/slup263.pdf [143] G. Ivensky, S. Bronshtein and A. Abramovitz, "Approximate Analysis of Resonant LLC DC-DC Converter," in IEEE Transactions on Power Electronics, vol. 26, no. 11, pp. 3274-3284, Nov. 2011. [144] A. K. S. Bhat, "Fixed-frequency PWM series-parallel resonant converter," in IEEE Transactions on Industry Applications, vol. 28, no. 5, pp. 1002-1009, Sept.-Oct. 1992. doi: 10.1109/28.158822 [145] N. Shafiei, M. Ordonez and W. Eberle, "Output rectifier analysis in parallel and series-parallel resonant converters with pure capacitive output filter," 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, Fort Worth, TX, 2014, pp. 9-13. doi: 10.1109/APEC.2014.6803282 (output rectifier analysis with analytical equations) [146] Y. A. Ang, C. M. Bingham, M. P. Foster, D. A. Stone and D. Howe, "Design oriented analysis of fourth-order LCLC converters with capacitive output filter," in IEE Proceedings - Electric Power Applications, vol. 152, no. 2, pp. 310-322, 4 March 2005. [147] N. Shafiei, M. Pahlevaninezhad, H. Farzanehfard, A. Bakhshai and P. Jain, "Analysis of a Fifth-Order Resonant Converter for High-Voltage DC Power Supplies," in IEEE Transactions on Power Electronics, vol. 28, no. 1, pp. 85-100, Jan. 2013. [148] F. Z. Peng, H. Li, G. J. Su, and J. S. Lawler, “A new ZVS bidirectional DC-DC converter for fuel cell and battery application,” IEEE Trans. Power Electron., vol. 19, no. 1, pp. 54–65, 2004. [149] Fang Lin Luo, “Luo-Converters, a series of new DC-DC step-up (boost) conversion circuits,” in Proceedings of Second International Conference on Power Electronics and Drive Systems, vol. 2, pp. 882–888 [150] P. Xuewei and A. K. Rathore, "Naturally Clamped Soft-Switching Current-Fed Three-Phase Bidirectional DC/DC Converter," in IEEE Transactions on Industrial Electronics, vol. 62, no. 5, pp. 3316-3324, May 2015. [151] A. K. Rathore and U. Prasanna, "Comparison of soft-switching voltage-fed and current-fed bi-directional isolated Dc/Dc converters for fuel cell vehicles," 2012 IEEE International Symposium on Industrial Electronics, Hangzhou, 2012, pp. 252-257. [152] H. Kim, C. Yoon and S. Choi, "A Three-Phase Zero-Voltage and Zero-Current Switching DC–DC Converter for Fuel Cell Applications," in IEEE Transactions on Power Electronics, vol. 25, no. 2, pp. 391-398, Feb. 2010. [153] U. R. Prasanna, P. Xuewei, A. K. Rathore and K. Rajashekara, "Propulsion System Architecture and Power Conditioning Topologies for Fuel Cell Vehicles," in IEEE Transactions on Industry Applications, vol. 51, no. 1, pp. 640-650, Jan.-Feb. 2015. [154] S. D. Johnson and R. W. Erickson, "Steady-state analysis and design of the parallel resonant converter," 1986 17th Annual IEEE Power Electronics Specialists Conference, Vancouver, Canada, 1986, pp. 154-165. [155] F. da Silveira Cavalcante and J. W. Kolar, “Design of a 5 kW high output voltage series-parallel resonant DC-DC converter,” in IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC ’03., vol. 4, pp. 1807–1814. [156] J. A. Martin-Ramos, J. Diaz, A. M. Pernia, J. M. Lopera, and F. Nuno, “Dynamic and Steady-State Models for the PRC-LCC Resonant Topology With a Capacitor as Output Filter,” IEEE Trans. Ind. Electron., vol. 54, no. 4, pp. 2262–2275, Aug. 2007. [157] J. A. Martin-Ramos, J. Diaz, F. Nuno, P. J. Villegas, A. Lopez-Hernandez, and J. F. Gutierrez-Delgado, “A Polynomial Model to Calculate Steady-State Set Point in the PRC-LCC Topology With a Capacitor as Output Filter,” IEEE Trans. Ind. Appl., vol. 51, no. 3, pp. 2520–2527, May 2015. [158] T. Dragičević, X. Lu, J. C. Vasquez and J. M. Guerrero, "DC Microgrids—Part II: A Review of Power Architectures, Applications, and Standardization Issues," in IEEE Transactions on Power Electronics, vol. 31, no. 5, pp. 3528-3549, May 2016. [159] A. T. Ghareeb, A. A. Mohamed and O. A. Mohammed, "DC microgrids and distribution systems: An overview," 2013 IEEE Power & Energy Society General Meeting, Vancouver, BC, 2013, pp. 1-5. [160] J. D. van Wyk and F. C. Lee, "On a Future for Power Electronics," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 1, no. 2, pp. 59-72, June 2013. [161] https://minds.wisconsin.edu/bitstream/handle/1793/76523/Shaver-Lee_thesis-signed.pdf?sequence=1. [162] P. Xuewei and A. K. Rathore, "Novel Interleaved Bidirectional Snubberless Soft-Switching Current-Fed Full-Bridge Voltage Doubler for Fuel cell Vehicles," in IEEE Transactions on Power Electronics, vol. 28, no. 12, pp. 5535-5546, Dec. 2013. [163] C. P. Dick, A. Konig and R. W. De Doncker, "Comparison of Three-Phase DC-DC Converters vs. Single-Phase DC-DC Converters," 2007 7th International Conference on Power Electronics and Drive Systems, Bangkok, 2007, pp. 217-224. [164] R. Suryadevara, T. Li, K. Modepalli and L. Parsa, "Three-phase current-fed soft-switching DC-DC converter," 2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), Edinburgh, 2017, pp. 899-904. [165] R. L. Andersen and I. Barbi, "A Three-Phase Current-Fed Push–Pull DC–DC Converter," in IEEE Transactions on Power Electronics, vol. 24, no. 2, pp. 358-368, Feb. 2009. [166] C. Liu, A. Johnson, J. S. Lai, "A novel three-phase high-power soft-switched DC/DC converter for low-voltage fuel cell applications", IEEE Trans. Ind. Appl., vol. 41, no. 6, pp. 1691-1697, Nov./Dec. 2005. [167] H. Cha, J. Choi and P. N. Enjeti, "A Three-Phase Current-Fed DC/DC Converter With Active Clamp for Low-DC Renewable Energy Sources," IEEE Trans. Power Electron., vol. 23, no. 6, pp. 2784-2793, Nov. 2008. [168] S. Lee, J. Park and S. Choi, "A Three-Phase Current-Fed Push–Pull DC–DC Converter With Active Clamp for Fuel Cell Applications," in IEEE Transactions on Power Electronics, vol. 26, no. 8, pp. 2266-2277, Aug. 2011. [169] K. Modepalli, A. Mohammadpour, T. Li and L. Parsa, "Three-Phase Current-Fed Isolated DC–DC Converter With Zero-Current Switching," in IEEE Transactions on Industry Applications, vol. 53, no. 1, pp. 242-250, Jan.-Feb. 2017. [170] A. K. Rathore, A. K. S. Bhat, and R. Oruganti, “Wide range ZVS activeclamped L-L type current-fed dc-dc converter for fuel cells to utility interface: Analysis, design and experimental results,” IEEE Trans. Ind. Electron., vol. 59, no. 1, pp. 473–485, Jan. 2012. [171] V. R. Vakacharla and A. K. Rathore, "Current-Fed Isolated LCC-T Resonant Converter With ZCS and Improved Transformer Utilization," in IEEE Transactions on Industrial Electronics, vol. 66, no. 4, pp. 2735-2745, April 2019. [172] V. R. Vakacharla, A. K. Rathore, “Analysis and Design of Soft Switched 3-phase Isolated Current-fed DC-DC Converter using LCC-T Resonance,” in Proc. 2018 IEEE Ind. Appl. Soc. Ann. Meeting, Portland, OR USA, pp. 1 – 14, DOI: 10.1109/IAS.2018.8544703. [173] https://www.epa.gov/energy/greenhouse-gases-equivalencies-calculator-calculations-and-references [174] https://news.energysage.com/much-solar-panels-save/