Patent ID: 7777465
Filing Date: 2010-08-17
Classification: G05F

Abstract:
1. A controlling method of a voltage regulator, the voltage regulator at least comprising a differential circuit and a pump high-voltage circuit which has a bias path, an output transistor and an output terminal, comprising steps of: (a) providing at least a pre-charge path and a discharge path to the pump high-voltage circuit; (b) closing the bias path and charging the output terminal with the pre-charge path if a transient of a voltage of the output terminal is raised, and discharging the output terminal with the discharge path if the transient of the voltage of the output terminal is decreased; (c) detecting an output level of the output terminal; and (d) closing the pre-charge path and the discharge path and opening the bias path to bias the output transistor when the output level reaches a predetermined value.