Title: Voltage, current, or power controller utilizing a switched reactance A.C. shunt regulator

Abstract: Apparatus is described that regulates the transfer of voltage, current, or power from an AC line to a load. The basic controller comprises an inductive element and a switch whose closing converts the inductive element from a series inductance between line and load to a step-down auto-transformer between line and load thus reducing the voltage available to the load and thereby reducing or terminating energy transfer to the load. The switch is connected in series with the inductive element and the combination of the switch and one winding of the auto-transformer is connected in parallel with the load. The controller can therefore be thought of as a switched reactance AC shunt regulator. Theoretically, shunt power in the controller is losslessly returned to the source. The controller is used to regulate any parameter related to the current through the load, the voltage across the load, or the power dissipated by the load simply by controlling the switch with any suitable means for sensing that parameter.

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Inventors: Reymond, Welles K. (Wilton, CT, US)

Application Number: 369083
Filing Date: 1973-06-11
Publication_date: 1976-03-16
Assignee:
Primary Class(es): 323/263
Other Classes:
US Patent Ref:

1843745	Feb, 1932	Thompson	323/45.
3209239	Sep, 1965	D'Agostino	323/76.
3270270	Aug, 1966	Yenisey	321/18.
3312891	Apr, 1967	McCabe et al.	323/43.
3370223	Feb, 1968	Senetcen	323/45.
3408558	Oct, 1968	Petersen et al.	323/45.
3470444	Sep, 1969	Bixby	321/20.
3621374	Nov, 1971	Kettler	323/45.
3778699	Dec, 1973	Hoffman	323/45.

Other Refs:
Primary Examiner: Goldberg, Gerald
Assistant Examiner:
Attorney: