Flux reversal in magnetic amplifier cores

IN RECENT years theun derstanding magnetic amplifier circuits has advanced rapidly, and great strides have been made in the art. However, it is recognized that several aspects of magnetic amplifier operation still need clarification. In most instances, the lack of a satisfactory explanation for certain circuit characteristics can be traced to an incomplete understanding of the behavior of the magnetic cores used. Therefore, a definite need exists for a study of the process of flux reversal in these magnetic amplifier components. The grain-oriented 50-per-cent nickel-iron alloys (such as Orthonol) are of particular interest and will be the material considered here. However, most of the results can probably be extended directly to other highly oriented ¿square hysteresis loop¿ materials.