Theory and equivalent circuits of the double induction regulator

Tensor analysis is used to develop a comprehensive theory of the double induction regulator. The general case of a biased double regulator with completely dissimilar component single regulators is first examined. Working equations and equivalent circuits for other types of double regulator are then derived from those of the general case. Tests made on a simple (unbiased) double regulator are shown to agree closely with the behaviour predicted by theory.