Optimal Design of a DC Reset Circuit for Pulse Transformers
Posted: Sun Jun 20, 2010 3:22 pm
Just happened across this and thought some may find it randomly useful.
http://www.pes.ee.ethz.ch/uploads/tx_et ... APEC07.pdf
http://www.pes.ee.ethz.ch/uploads/tx_et ... APEC07.pdf
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.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.