POWER SUPPLY CIRCUIT AND METHOD FOR ADJUSTING OUTPUT VOLTAGE THEREIN
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United States of America Patent
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Issued Date -
Apr 9, 2009
app pub date -
Jan 31, 2008
filing date -
Oct 9, 2007
priority date (Note) -
Abandoned
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Abstract
A power supply circuit and a method for adjusting an output voltage therein are provided. The power supply circuit includes a regulator having an input terminal receiving an input voltage, an output terminal outputting an output voltage and a regulating terminal, a voltage divider coupled between the output terminal and a ground, generating a dividing voltage, and a gain circuit coupled between the regulating terminal and the voltage divider, receiving the dividing voltage and generating a gain for adjusting the output voltage according to a reference voltage.
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