AC voltage regulator

Details AC voltage regulator AC voltage regulator

1977-07-11

1979-09-18

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323 24, G05F 500

Patent

active

041684761

ABSTRACT:
The conductive period of a thyristor is controlled during each half cycle of an AC source to regulate the RMS voltage across a load at substantially a constant level as the AC source voltage fluctuates widely. A signal proportional to the voltage variation in the AC source is derived by monitoring that voltage and comparing it with a reference voltage. Conduction through the thyristor during each half cycle of the AC source is then delayed for a period of time in proportion to this signal so that the period of conductivity becomes inversely proportional thereto.

REFERENCES:
patent: 3532855 (1970-10-01), Cleave
patent: 4004214 (1977-01-01), Evans
patent: 4076974 (1978-02-01), Gee

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