Optimal Design of a DC Reset Circuit for Pulse Transformers

Pulsed power systems often use a pulse transformer to generate high voltage pulses. In order to improve the utilization of the transformer core material usually a dc reset circuit is applied which results in a smaller transformer volume. However, by the use of a reset circuit additional losses are genrated. Usually, in the dimensioning of the reset circuit only the copper losses are considered but these are only a small part of the whole losses. In this paper analytical equations for calculating the losses in the pulsed power system and a method for optimizing a dc reset circuit are presented. With the optimization method a reset circuit for an existing system is designed and the results are validated by simulation and by measurements.

[1]  Myung-Haing Cho,et al.  Rise time analysis of pulsed klystron-modulator for efficiency improvement of linear colliders , 2000 .

[2]  D. M. Barrett.  Core reset considerations in magnetic pulse compression networks , 1995, Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference.

[3]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[4]  J.W. Kolar,et al.  Analytical Modeling of Pulse Transformers for Power Modulators , 2006, Conference Record of the 2006 Twenty-Seventh International Power Modulator Symposium.

[5]  D. M. Barrett.  Magnetic pulse compression techniques for non-thermal plasma discharge applications , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[6]  H. C. Kirbie,et al.  A magnetically switched trigger source for fxr , 1989, 7th Pulsed Power Conference.

[7]  Paul W. Smith,et al.  Transient Electronics: Pulsed Circuit Technology , 2002 .

[8]  Marcel P. J. Gaudreau,et al.  Solid-state pulsed power systems , 1998, Conference Record of the Twenty-Third International Power Modulator Symposium (Cat. No. 98CH36133).

[9]  B. C. Hickman,et al.  Inductive-Adder Kicker Modulator for Darht-2 , 2000 .

[10]  M. Obara,et al.  High efficiency operation of the high repetition rate magnetic pulse compressor for krf excimer lasers , 1989, 7th Pulsed Power Conference.

[11]  M. Obara,et al.  High efficiency operation of the high-repetition-rate all-solid-state magnetic pulse compressor for KrF excimer lasers , 1991 .

[12]  S. E. Peluso,et al.  High average power magnetic modulator for copper lasers , 1991, Eighth IEEE International Conference on Pulsed Power.

[13]  J. Randall,et al.  Pulse Generators , 1948, Nature.

[14]  D. Drury,et al.  CLIA — A compact linear induction accelerator system , 1992, 1992 9th International Conference on High-Power Particle Beams.

[15]  E. G. Cook,et al.  Solid-State Modulator R & D at LLNL , 2003 .