Circuit and Method for Controlling Operation Voltage, and Storage Device

摘要

A circuit and a method for controlling operation voltage, and a storage device are provided. The circuit includes: a voltage boost unit adapted for: if receiving a first signal, performing a voltage boost process; and if receiving a second signal, stopping the voltage boost process; a voltage division unit including a plurality of different voltage division coefficients, adapted for performing a voltage division process; a comparison unit adapted for: comparing the divided voltage with a reference voltage; if the divided voltage is low, outputting the first signal; and if not, outputting the second signal; a control unit adapted for performing a descending switching operation on the voltage division coefficients; and an output unit. The establishing speed of the operation voltage is effectively controlled, and an effect on device power consumption and performance caused by the threshold voltage and variations of the threshold voltage in the working process is eliminated.

主权项

1. A circuit for controlling operation voltage, comprising:
a voltage boost unit adapted for: if receiving a first signal, performing a voltage boost process so as to output a boosted voltage; and if receiving a second signal, stopping the voltage boost process and maintaining a value of the boosted voltage; a voltage division unit adapted for performing a voltage division process on the boosted voltage so as to output a divided voltage, wherein the voltage division unit comprises a plurality of different voltage division coefficients; a comparison unit adapted for: comparing the divided voltage with a reference voltage; if the divided voltage is lower than the reference voltage, outputting the first signal; and if the divided voltage is higher than the reference voltage, outputting the second signal; a control unit adapted for performing a descending switching operation on at least parts of the plurality of voltage division coefficients until the boosted voltage reaches a target voltage; and an output unit adapted for outputting the boosted voltage.