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Voltage gain optimization of transmission line transformers

Published online by Cambridge University Press:  14 May 2003

L. Pécastaing*
Affiliation:
Laboratoire de Génie Électrique, Université de Pau, Hélioparc Pau Pyrénées, 64053 Pau Cedex 9, France
T. Reess
Affiliation:
Laboratoire de Génie Électrique, Université de Pau, Hélioparc Pau Pyrénées, 64053 Pau Cedex 9, France
J. Paillol
Affiliation:
Laboratoire de Génie Électrique, Université de Pau, Hélioparc Pau Pyrénées, 64053 Pau Cedex 9, France
A. Gibert
Affiliation:
Laboratoire de Génie Électrique, Université de Pau, Hélioparc Pau Pyrénées, 64053 Pau Cedex 9, France
P. Domens
Affiliation:
Laboratoire de Génie Électrique, Université de Pau, Hélioparc Pau Pyrénées, 64053 Pau Cedex 9, France
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Abstract

Transmission Line Transformers (TLT) based on the use of ferrite beads are presented. This work aims at optimising the performance of the voltage gain and the compactness of the TLT according to the position, the type and the number of ferrites used. The ferrites have been selected taking into account two main parameters: the maximum currents flowing through the outer conductor of the lines of a TLT without ferrite beads and the current frequencies. The function of these ferrites is to decrease the effect of parasitic short-circuit transmission lines between the outer conductors of the coaxial cables of the TLT. Voltages and secondary currents are measured on each cable. The voltage gain achieved reaches the optimum theoretical value thanks to the use of ferrites for a 2, 4 and 10-stage transmission line transformer. Each cable is shorter than 1.5 meter in length which provides an unquestionable advantage of compactness.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2003

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References

B.M. Penetrante, Proceedings of the 9th IEEE Pulsed Power Conference, 1993, Albuquerque, pp. 1-5
Muser, A., Zen, J., Armbruster, R., Onde Électr. 2, 520 (1964)
C.R. Wilson, P.W. Smith, Proceedings 17th Power Modulator Symposium, 1986, Seattle, pp. 281-285
C. Wilson, G.A. Erickson, P.W. Smith, Compact, repetitive, pulsed power generators based on transmission line transformers, Proceedings 7th IEEE International Pulsed Power Conference, 1989, pp. 108-112
Rivaletto, M., Pignolet, P., Eur. Phys. J. AP 3, 159 (1998) CrossRef
Graneau, P.N., Rossi, J.O., Brown, M.P., Smith, P.W., Rev. Sci. Instrum. 67, 2630 (1996) CrossRef
Smith, P.W., Rossi, J.O., IEEE 5, 610 (1997)
Sommerville, I.C., Mac Gregor, S.J., Farish, O., Meas. Sci. Technol. 1, 865 (1990) CrossRef
Moran, P., Gibert, A., Jean François, G., Pignolet, P., IEE Proc. Sci. Meas. Technol. 143, 1 (1995)
L. Pécastaing, T. Reess, J. Paillol, A. Gibert, P. Domens, J.P. Brasile, Optimization of the performance of a transmission line transformer based on the use of ferrite beads, 11th International Symp. on High Voltage Engineering (ISH), London, 1999, Vol. 5, pp. 386-389
LCC - Thomson CSF, Soft ferrites, Data Handbook, 1997
Philips, Magnetic products - Soft ferrites, Data Handbook MA 01, 1998