Reference voltage generator
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United States of America Patent
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Aug 11, 2009
Grant Date -
May 10, 2007
app pub date -
Nov 7, 2006
filing date -
Nov 9, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A reference voltage generator according to an embodiment of the present invention includes: a voltage setting circuit generating a first voltage having a predetermined voltage difference from an output voltage; a voltage buffer receiving the first voltage and outputting a first power supply substantially equal to the first voltage; a voltage clamp circuit operating based on a second power supply and a third power supply; and a band-gap circuit generating the output voltage, the band-gap circuit operating based on the second power supply and the first power supply output from the voltage clamp circuit.
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