A new feedback-controlled ferroresonant regulator employing a unique magnetic component

A new feedback-controlled ferroresonant voltage regulator employing a single magnetic structure is presented. By introducing an additional magnetic path through the use of a second set of shunts, all the magnetic functions are provided in a minimum volume. In this new circuit, instead of permitting saturation of the output section of the core, an external control circuit simulates core saturation and provides a means of obtaining precision regulation. This circuit retains all the advantages of ferroresonant regulators such as high reliability and simplicity; in addition it reduces the stray magnetic field and proves to be economical.