Patent ID: 8760217
Filing Date: 2014-06-24
Classification: G06F,H03K,Y02D

Abstract:
1. A semiconductor device comprising: a circuit positioned between a ground bus and a power bus; a power switch array positioned between the circuit and one of the ground bus or the power bus to generate a virtual voltage across the circuit; a monitor positioned between the ground bus and the power bus, the monitor configured to measure a voltage across the circuit and output a voltage adjust signal based on feedback from the measured voltage across the circuit; and a controller configured to receive the voltage adjust signal and to output a control signal to the power switch array to control the virtual voltage, wherein the controller is further configured to receive a mode signal that indicates a target voltage and wherein the controller further comprises: compare logic configured to compare the target voltage to a voltage command signal and output a voltage difference signal; and power switch output logic configured to convert the voltage difference signal into the voltage command signal and to settings of individual switches in the power switch array.