Voltage regulator devices and voltage regulating method

摘要

Various embodiments provide voltage regulator circuitry and devices. An exemplary voltage regulator circuitry can include a current comparing unit configured to convert an output voltage from a charge pump to a current and to compare the current with at least two different reference currents to generate a comparison result. A logic controller can be configured to generate a clock frequency adjustment signal based on the comparison result. A programmable clock unit can be configured to adjust a frequency of a clock signal according to the clock frequency adjustment signal to send the clock signal to the charge pump. Accordingly, the disclosed voltage regulator device can have reduced power consumption and improved reliability.

主权项

1. A voltage regulator device, comprising:
a current comparing unit configured to convert an output voltage from a charge pump to a current and to compare the current with a first reference current and a second reference current, different from the first reference current, to generate a comparison result; a logic controller connected to the current comparing unit and configured to generate a clock frequency adjustment signal based on the comparison result; and a programmable clock unit connected to the logic controller to receive the clock frequency adjustment signal and connected to the charge pump, and configured to adjust a frequency of a clock signal according to the clock frequency adjustment signal and to send the clock signal to the charge pump to control the output voltage of the charge pump, wherein the logic controller includes a recognition unit and an arithmetic unit, and wherein the recognition unit is electrically connected to the current comparing unit to recognize the comparison result and send a recognition result to the arithmetic unit; and the arithmetic unit is electrically connected to the recognition unit and the programmable clock unit to execute an addition or subtraction operation according to the recognition result to generate a calculation result and send the calculation result to the programmable clock unit.