Factors in inductive storage system design

Abstract

The practical implementation of an inductive pulsed power supply depends on its size and EMI with neighboring environment. Parametric trade-off is made for the prime power battery and the coil. It is shown that the minimal volume of the battery-coil system with a Brooks coil is achieved at a ratio of their volumes 3:2, respectively. For such systems, a jellyroll coil is preferable to a pancake one in view of a higher transfer efficiency. At very high battery power density, a pancake coil may be a right choice due to a lower mechanical stress. The fringe field of cylindrical and quasitoroidal coils was calculated using dipole approximation. Measurements of the discharge efficiency and fringe field are in a good agreement with the theoretical analysis.