Method and apparatus for adjusting and obtaining a reference voltage
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United States of America Patent
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Mar 27, 2012
Grant Date -
Jul 29, 2010
app pub date -
May 25, 2009
filing date -
May 28, 2008
priority date (Note) -
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Abstract
A method for adjusting a reference voltage is provided, including: decoding a default code configured in a reference voltage register in a chip to obtain an actual reference voltage; comparing the actual reference voltage with a benchmark value to obtain a deviation value between the two; configuring an adjustment code according to the deviation value; and, burning the adjustment code into a nonvolatile storage medium. The present invention also discloses an apparatus for adjusting a reference voltage. Thus, adjustment on the reference voltage of the chip is standardized and costs of the chip's application schemes are saved. A method and apparatus for obtaining a reference voltage are also provided, and thus stability of the circuit's working is improved and costs of the chip's applications are decreased.
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