Patent ID: 7352161
Filing Date: 2008-04-01
Classification: H02M,Y02B

Abstract:
1. A voltage regulator circuit having a signal output, the signal output coupled to an output capacitor, the voltage regulator circuit comprising: a power switch coupled to an input power source, the power switch to selectively complete a current path from the input power source through an energy storage device to provide an output current at a specified voltage level; a current sense circuit coupled to the power switch, the current sense circuit being configured to detect a current flowing through the power switch and generate a current signal consisting essentially of an AC component thereof; and a feedback compensator circuit coupled to the current sense circuit and to a feedback control signal line, the feedback compensator circuit being configured to generate a signal based upon the current signal and a voltage feedback control signal that is a direct measurement of the output voltage and is to be used to control the state of the power switch.