Patent ID: 8575997
Filing Date: 2013-11-05
Classification: G05F,G06F,Y02D

Abstract:
1. A circuit for downscaling voltage comprising: a voltage regulator configured to provide an adjustable voltage supply; a voltage comparator configured to output a first output value if a supply voltage of the voltage regulator is greater than a value of a voltage reference and configured to output a second output value otherwise, wherein a first input of the voltage comparator is coupled to an output of the voltage regulator and a second input of the voltage comparator is coupled to the voltage reference; a logic device, wherein a first input of the logic device is coupled to an output of the voltage comparator and a second input of the logic device is coupled to a voltage reference ready signal, wherein the voltage reference ready signal indicates the voltage reference is ready for comparison; a switch configured to close or open based on an output of the logical device; and a resistor configured to couple to the output of the voltage regulator when the switch is closed.