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Publication of BE451787ApublicationCriticalpatent/BE451787A/xx
G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F1/00—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
G05F1/10—Regulating voltage or currentÂ
G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is AC or DC
G05F1/63—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is AC or DC using variable impedances in series with the load as final control devices
G05F1/644—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is AC or DC using variable impedances in series with the load as final control devices being pressure-sensitive resistors
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION