Voltage regulator having an inverse adaptive controller

Details Voltage regulator having an inverse adaptive controller Voltage regulator having an inverse adaptive controller

2006-04-18

2006-04-18

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S281000

Reexamination Certificate

active

07030595

ABSTRACT:
A low drop-out (LDO) voltage regulator that has high a PSRR (Power Supply Ripple Rejection) performance and a high load regulation with low current consumption is disclosed. The voltage regulator doses not require any high gain error amplifier that may cause instability in the voltage regulator. A voltage-controlled current-feedback is presented that generates an inverse phase signal and compensation voltage for a ripple noise and dropout voltage, respectively. The voltage-controlled current-feedback generates a negative voltage slope with regard to the power supply voltage, which can cancel the ripple noise at the output terminal. The current-feedback creates a positive coefficient voltage with regard to the load current, which compensates the voltage drop caused by parasitic resistances.

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“Analog Integrated Circuit Design” by Johns, et al., 1997, pp. 223-224.

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