JEMAA  Vol.1 No.1 , March 2009
Analysis and Design of a Kind of Improved Parallel Resonant Converters
Abstract: Traditional transformer in high-voltage power supplies has many disadvantages such as high turn’s ratio, large volume and great design difficulties. Parallel resonant converters (PRCs) are widely used in high-voltage power supplies. A kind of high-voltage circuit topology can be formed by combining PRCs and voltage-doubler rectifier, which is called parallel resonant dual voltage converters (PRDVCs). In PRDVCs both voltage-doubler rectifier and transformer can boost voltage, which reduced turn’s ratio and volume of the transformer, making it easier to produce. Thus it not only realizes the high-voltage output, but also realizes the miniaturization of high-voltage power supply. Three modes of the converters were researched and simulated. Converting conditions of three modes were given. At last, PRDVCs was used to design a 5000V/50mA high-voltage power supply. The waveforms and results of the experiment were given, which validated the feasibility of the converters and its conversion efficiency might be improved to 93%.
Cite this paper: nullC. Yuan, J. Wan, X. Li, H. Shen, Y. Liu and G. Li, "Analysis and Design of a Kind of Improved Parallel Resonant Converters," Journal of Electromagnetic Analysis and Applications, Vol. 1 No. 1, 2009, pp. 66-72. doi: 10.4236/jemaa.2009.11011.

[1]   R. W. Erickson, “The parallel resonant converter,” lecture of University of Colorado, chapter 5, 2003.

[2]   X. B. Ruan and Y. G. Yan, “Soft switching technology of DC switching power supply [M],” Beijing: Science Press,

[3]   R. Oruganti and F. C. Lee, “State-plane analysis of a parallel resonant converter,” [C]. IEEE Power Elec-tronics Specialist Conference Record, PESC-1985, pp. 56-73.

[4]   A. K. S. Bhat and M. M. swamy, “Analysis and design of a high-frequency parallel resonant converter operat-ing above resonance,” [J]. IEEE Transactions on Aero-space and electronics Systems, Vol. 25, No. 4, pp. 449-458, July 1989.

[5]   Z. G. Lu, “Computer simulation of power supply,” [M]. Beijing: Science Press, 2001.