Voltage regulator devices and voltage regulating method
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United States of America Patent
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May 17, 2016
Grant Date -
Dec 26, 2013
app pub date -
May 17, 2013
filing date -
Jun 26, 2012
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Abstract
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.
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