High PSRR, fast settle time voltage regulator

Details High PSRR, fast settle time voltage regulator High PSRR, fast settle time voltage regulator

2006-12-19

2006-12-19

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S283000, C323S288000, C323S315000

Reexamination Certificate

active

07151363

ABSTRACT:
A voltage regulator including a high-speed feedback loop operating to provide rapid settling time and a large Power Supply Rejection Ratio (PSRR). The high-speed feedback loop includes a reservoir capacitor that stores charge based on a charging current. The charge stored by the reservoir capacitor corresponds to a regulated voltage provided by the voltage regulator. When charge is drawn from the reservoir capacitor by a load, a dip occurs in the regulated output voltage. The high-speed feedback loop operates to restore the charge to the reservoir capacitor, thereby restoring the regulated voltage to its desired value. More specifically, when charge is drawn from the reservoir capacitor, the high-speed feedback loop operates to increase the first current, thereby restoring charge to the reservoir capacitor.

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