using bucking or boosting transformers as final control devices

Full Title

Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems > Regulating voltage or current > wherein the variable is actually regulated by the final control device is AC > using bucking or boosting transformers as final control devices

Classification Context

Section:

PHYSICS

Class:

CONTROLLING; REGULATING

Subclass:

SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

Child Classifications

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• G05F 1/247 with motor in control circuit
• G05F 1/253 the transformers including plural windings in series between source and load
• G05F 1/26 combined with discharge tubes or semiconductor devices