A replica biased voltage regulator circuit (100) is disclosed that provides high frequency response via local positive feedback and low frequency response via a negative feedback loop. A voltage regulator circuit (100) can include current conveyor (106) that essentially forces an output voltage (Vload) to follow a replica voltage (Vrep). An operational amplifier (102) can provide negative feedback by controlling current supplied to the current conveyor (104) based on a comparison between a reference voltage (Vref) and the replica voltage (Vrep).

 
Web www.patentalert.com

< Feed-forward method for improving a transient response for a DC—DC power conversion and DC—DC voltage converter utilizing the same

< Guaranteed bootstrap hold-up circuit for buck high side switch

> Voltage reference generator with negative feedback

> Programmable calibration circuit for power supply current sensing and droop loss compensation

~ 00251