Patent ID: 8063617
Filing Date: 2011-11-22
Classification: H02M

Abstract:
1. A quick response generation circuit for a voltage regulator which generates a regulated output voltage at a power output and has a power switch connected between a power input and the power output to be switched by a pulse width modulation signal, the quick response generation circuit comprising: a first quick response comparator comparing a feedback signal related to the output voltage with a first reference signal to thereby determine a set signal; a second quick response comparator comparing the feedback signal with a second reference signal to thereby determine a reset signal; and a quick response signal generator connected to the first and second quick response comparators, in response to the set signal and the reset signal, to determine a quick response signal having a quick response pulse to be inserted into the pulse width modulation signal; wherein the power switch is on during the period of the quick response pulse to connect the power input to the power output.