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An object of my invention is to provide a power regulator which will produce a direct current voltage that may be adjusted easily to any preselected value within a wide range of values and which will accurately maintain the voltage at the selected value.Another object is to provide a power regulator which will not only accurately maintain the voltage at a load but will be responsive to and control the current supplied to the load.According to a further and important feature of my invention a pulsating or alternating component of the source voltage is superposed on the steady voltage at the solenoid winding.The condenser 2| is connected between one terminal of the winding and a pointin or ahead of the rectifler 3.With the condenser-solenoid circuit connected across one leg of the rectifier as shown, one half of the alternating wave of the source flows through the solenoid winding.With the condenser-solenoid circuit connected across the output diagonal of the rectifier, a double-frequency pulse current will of course flow in the solenoid winding.This I accomplish by introducing an air gap into the core of the transformer employed between the reactor and the load.The above mentioned and other features and objects of this invention and the manner of attaining them will become more apparent and the invention itself will be best understood, by reference to the following description of an embodiment of the invention taken in conjunction with the accompanying drawing, wherein the single figure is a circuit diagram of one of my novel regulators.
BY f 4 A TTOF/VEY Patented July 10, 1951 POWER REGULATOR William J. 1., assignmto Federal Telephone and Radio Corporation, New York, N. 323-66) My invention relates to power regulators and is particularly directed to improvements for maintaining between very narrow limits the voltage and current supplied to a load.
A third winding 8 on the core supplies a voltage for regulating purposes, to be described.
In series with one line of the source is connected a saturable core reactor 9.
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