Analysis of magnetic amplifiers with diodes

It has been demonstrated1 that the behavior of magnetic amplifiers without diodes can be analytically described by a set of linear difference equations relating the average values of voltages and currents at the ports. For most circuits this representation gives values which are accurate to within 1 or 2% of actual even for a large variety of waveforms of port and supply voltages. The reason for this rather remarkable accuracy of representation can be attributed to three factors: 1. The control circuit resistance R1 the output circuit resistance R2, and the load resistance RL are small compared to the magnetizing resistance Rm. 2. Almost all practical amplifiers of this type employ an interconnection of basic elements such that quiescent currents tend to cancel at the ports. 3. The state of the saturable inductor, saturated or unsaturated, depends on the integral of the inductor voltage rather than the inductor voltage itself.