Patent ID: 9594387
Date: 2017-03-14
CPC Classifications: G05F,H02M

Claim:
1. A voltage regulator comprising: a measurement circuit for generating a value representing a magnitude of a capacitance at an output node of the voltage regulator; and a correction circuit for modifying, based on the value, a compensation circuit internal to the voltage regulator comprising resistance and capacitance and having a zero corresponding to a frequency substantially equal to (1/(2π(the resistance being total resistance of internal wiring of an integrated ciruit and the equivalent series resistance of the output capacitor)(the capacitance being capacitance of the output capacitor)) the correction circuit modifying a closed-loop feedback circuit by increasing a frequency of the zero in the closed feedback loop of the voltage regulator by changing values of the resistance or the capacitance in the feedback loop to provide stability to the closed feedback loop.