Abstract
A new analytical model is proposed to evaluate the pulse compression ratio and the efficiency in the pulse compression circuit using magnetic switches (MS). In the model, pulse compression ratio is described as functions of magnetic swing(ΔB) and switching energy density (charging energy of the capacitor/volume of core). From the evaluation, the core volume are found to be proportional to ΔB-2 for same switching condition and only the cores having larger values of ΔB is found to be useful for MS. The efficiency of pulse compression circuit using MS is evaluated to be much higher than those of the circuits using spark gap switches or SCR. The difference of the efficiency is shown to be almost same when using amorphous metallic cores of iron based and cobalt based material.
