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Abstract

A single regulation power supply providing load compensation of an auxiliary voltage output, wherein power is transferred from the primary winding of a transformer to a first and a second secondary windings each coupled to a rectifying and filter network respectively providing a main and an auxiliary voltage output, wherein a control loop senses the algebraic sum of the main output voltage and the voltage drop developed in a resistor by current drawn by a load on the auxiliary voltage output and controls current pulses applied to the primary winding so as to keep constant such sum, thereby rendering the auxiliary voltage insensitive to load changes at the auxiliary output, to any desired extent determined by the value of such resistor, with the trade off of a limited degradation in the control of the main voltage output.

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First Claim