Energy transfer from a low-voltage capacitor bank to a high inductance with the aid of an air pulse transformer

Abstract

The energy transfer from a capacitor bank to a high inductance was investigated. When the stored energy is greater than 30 kJ, direct coupling is impractical, and it is proposed to use a simple air pulse transformer for the purpose. The efficiency of the energy transfer depends strongly on the coupling constant k of the transformer. A reduced-scale pulse transformer with a coupling factor of k=0.95+or-0.01 was constructed; this transformer ensured a total energy transfer efficiency of more than 55%. Since the transformer is reliable and its construction is simple, it may be used with advantage in many systems.