The transient response of magnetic amplifiers-cases of negligible commutation

Previously developed methods of analysis of magnetic amplifiers with gradually varying incremental permeability are applied to the study of the general transient response of single-stage amplifiers. In the first part of the paper, curves are presented which describe the transient response of magnetic amplifiers without feedback in general dimensionless form. The curves apply for transients in which the alternating voltage at the amplifier terminals is constant, but convey useful information also for other actual operating conditions. In the second part, the analysis is extended to feedback amplifiers with a-c output operating in conditions of negligible commutation. Experimental checks indicate the order of accuracy obtainable.