A fast-response full-wave magnetic amplifier

A few recent papers1¿3 have been concerned with analyses of conventional, single-ended, full-wave magnetic amplifier circuits (or ¿doublet¿ amplifiers4) based on the theory that the reactors of this type of amplifier are coupled through the control windings and that this coupling results in feedback. The feedback, in turn, causes time delay and an increase in the volts/volt gain. The purpose of this paper is to present a novel circuit which clearly demonstrates the existence of the feedback phenomenon and to offer, for the magnetic amplifier design engineer, a mathematical treatment of this phenomenon both in the time domain and the frequency domain.