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An Three-Level PWM ZVS DC-DC Converter with C and π Filters

R. Premalatha, P. Murugesan


This paper deals with modeling and simulation of Zero Voltage Switching Pulse Width Modulation Three Level DC to DC Converter for Open Loop Operation with C and π-Filter . DC Input voltage of 220V is stepped down to 48V using an efficient DC to DC Converter. Direct current is converted into high frequency Alternating current using Three Level Inverter. The Output of Inverter is stepped down and converted into DC using an controlled rectifier. This circuit has advantages like reduced transformer size and reduced filter requirement. The oscillations and voltage stress of the input voltage is reduced by the two clamping diodes ,in the meanwhile, all the switches turn on and off at zero voltage in this paper. The Operation principle of open loop DC-DC converter with π-Filter was analysed.


Pulse-Width-Modulation, Soft-Switching, Three-Level Converter, Zero Voltage Switching.

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H.Sugimura, K.Fathy, S.P.Mun, T.Doi, T,Mishima, M. Nakaoka,“Three-Level Phase Shifted Soft Transition PWM DC-DC Power Converter with High Frequency Link for Arc Welders and Its Extended Version,” Proc.of International Power Electronics and Motion Control.

Ke Jin, Xinbo Ruan, and Fuxin Liu “An Improved ZVS PWM Three-Level Converter ,” Proc. of IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 1, FEBRUARY 2007

Z.L.Lou and Z.S.Wang, “An Improved Three-Level Soft-Switching DC/DC Converter,” Proc. of The 5th International Power Electronics & Motion Control Conference (IPEMC), pp.373-377, Shanghai, China, August, 2006.

X. Ruan, D. Xu, L. Zhou, B. Li, and Q. Chen, “Zero-voltage-Switching PWM three-level converter with two clamping diodes,” IEEE Trans.Ind. Electron., vol. 49, no. 4, pp. 790–799, Aug. 2002

J. Breckling, Ed., The Analysis of Directional Time Series: Applications to Wind Speed and Direction, ser.Lecture Notes in Statistics. Berlin, Germany: Springer,1989, vol. 61.

S. Zhang, C. Zhu, J. K. O. Sin, and P. K. T. Mok, “A novel ultrathin elevated channel low-temperature poly-Si TFT,” IEEE Electron Device Lett., vol. 20, pp.569–571, Nov. 1999.

iF. Canales, P. Barbosa, and F. C. Lee, “ A Wide Input Voltage and Load Output Variations Fixed-Frequency ZVS DC/DC LLC Resonant Converter for High-Power Applications,” in Conf. Rec. of IEEE-IAS, Oct. 2002, pp. 2306-2313.

X. Ruan, L. Zhou, and Y. Yan , “ Soft Switching PWM Three-Level Converters ,” IEEE transactions on Power Electronics, Vol. 16, No. 5,Sept. 2001, pp. 612-622.

J. S. Lai and F. Z. Peng, “Multilevel Converter – A New Breed of Power Converters,” IEEE Trans. on Ind. Appl., Vol. 32, No. 3, May 1996, pp. 509-517.

J.Renes Pinheiro and Ivo Barbi, “ The Three-level zvs pwm converter -A new concept in high-voltage dc to dc conversion,” IEEE IECON, 1992, pp. 173-1 78.

J.Renes Pinheiro and Ivo Barbi , “ Wide load range three level ZVS PWM dc to dc converter, ” IEEE PESC.

J. G. Cho, J. A. Sabate, G. C. Hua and F. C. Lee,“Zero-voltage and zero-current-switching full-bridge pwm converter for high power applications,” IEEE-1993, pp.171-177PESC, 1994, pp.102-108.

F.Canales, P.M.Barbosa and F.C.Lee, “A zero voltage and zero-current-switching three level dc/dc converter,” Proceeding VPEC, 1999.


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