Analysis of the full-wave magnetic amplifier circuits considering the change of the width of the dynamic hysteresis loop

RECENTLY the behavior of the full-wave magnetic amplifier was analyzed in the case of the very low control circuit resistance and the correlation between the instantaneous hysteresis loop and the control characteristics was demonstrated.1 Concerning the transient behavior, the approach described in the literature1, 2 permits computation of an equivalent time constant. This concept may be applied to the case of the “slow transient.” However, when the control circuit resistance is large, the approach loses its meaning.