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Loss Analysis of Half Bridge DC-DC Converters in High-Current and Low-Voltage Applications
Abstract:In this paper, half bridge DC-DC converters with transformer isolation presented in the literature are analyzed for highcurrent and low-voltage applications under the same operation conditions, and compared in terms of losses and efficiency. The conventional and improved half-bridge DC-DC converters are simulated, and current and voltage waveforms are obtained for input voltage Vdc=500V, output current IO=450A, output voltage VO=38V and switching frequency fS=20kHz. IGBTs are used as power semiconductor switches. The power losses of the semiconductor devices are calculated from current and voltage waveforms. From simulation results, it is seen that the capacitor switched half bridge converter has the best efficiency value, and can be preferred at high power and high frequency applications.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1075715Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF
 R. W. Erickson, "Fundamentals of Power Electronics", New York: Chapman and Hall, 1997.
 N. Mohan, T. Undeland, and W. Robbins, "Power Electronics: Converters, Applications, and Design", 2nd ed., New York: John Wiley & Sons, 1995.
 K. Fathy, K. Morimoto, T. Doi, K. Kang Hoon, L.H. Woo, M. Nakaoka, ÔÇÿA New Soft-Switching PWM Half-Bridge DC-DC Converter with High and Low Side DC Rail Active Edge Resonant Snubbers- in 2006 Power Electronics Specialists Conference, pp. 1-7.
 M. Hong, J. Abu-Qahouq, L. Shiguo, I. Batarseh, ÔÇÿZero-voltageswitching half-bridge DC-DC converter with modified PWM control method-, IEEE Transactions on Power Electronics, vol. 19, pp. 947 - 958, July 2004.
 M. Hong, D. Songquan, J. Abu-Qahouq, I. Batarseh, ÔÇÿActive-clamp snubbers for isolated half-bridge DC-DC converters-, IEEE Transactions on Power Electronics, vol. 20, pp.1294-1302, Nov. 2005
 M. Hong. J. Abu-Qahouq, D. Songquan, I. Batarseh, ÔÇÿA new duty-cycleshifted PWM control scheme for half-bridge DC-DC converters to achieve zero-voltage-switching- in 2003 Applied Power Electronics Conference and Exposition, vol.2 , pp. 629-634.
 J. Dudrik, P. Spanik, and N.D. Trip ÔÇÿZero-Voltage and Zero-Current Switching Full-Bridge DC-DC Converter With Auxiliary Transformer-, IEEE Transactions on Power Electronics, vol.21, pp.1328-1335, Sept. 2006.
 T. Mishima, M. Nakaoka, E. Hiraki, ÔÇÿA single active edge-resonant snubber cell-assisted ZCS half-bridge DC-DC converter with constant frequency asymmetrical PWM scheme- in 2008 13th Power Electronics and Motion Control Conference, pp. 119-126.
 Y. Xiaoming, I. Barbi, ÔÇÿAnalysis, designing, and experimentation of a transformer-assisted PWM zero-voltage switching pole inverter-, IEEE Transactions on Power Electronics, vol.15, pp. 72-82, Jan. 2000.
 M. T. Aydemir, F. Evran , "Operation principles of a switched capacitor snubber circuit suggested for half-bridge DC-DC converters," Intl. J. Electron., vol. 96, pp. 29-42, Jan. 2009.