Optimal Design of a DC Reset Circuit for Pulse Transformers

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BenTC
Posts: 410
Joined: Tue Jun 09, 2009 4:54 am

Optimal Design of a DC Reset Circuit for Pulse Transformers

Post by BenTC »

Just happened across this and thought some may find it randomly useful.
http://www.pes.ee.ethz.ch/uploads/tx_et ... APEC07.pdf
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 generated.
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.
Though for low repetition pulse experiments, I guess the easy solution to transformer reset would be a DPDT contactor in front of the transformer to reverse the current each pulse.
In theory there is no difference between theory and practice, but in practice there is.

MSimon
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Joined: Mon Jul 16, 2007 7:37 pm
Location: Rockford, Illinois
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Post by MSimon »

David,

They were called vibrators. I changed more than a few back in the day.
Engineering is the art of making what you want from what you can get at a profit.

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