Power circuit, flash memory system provided with the power circuit, and power supply method
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United States of America Patent
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Aug 12, 2014
Grant Date -
Feb 28, 2013
app pub date -
May 10, 2012
filing date -
Aug 23, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A power circuit configured to supply an operating voltage to a memory controller configured to control a flash memory and an access to the flash memory, comprises an input side charging unit that is a charging unit configured to be charged by an input voltage that is supplied from the outside, a voltage regulation unit configured to regulate any higher one of the input voltage and a charging voltage of the input side charging unit to be the operating voltage and to output the voltage, an output side charging unit that is a charging unit configured to be charged by the operating voltage, and a discharging unit configured to discharge electricity that has been charged to the output side charging unit in the case in which any higher one of the input voltage and the charging voltage becomes lower than the setting value.
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