Bandgap reference circuits
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United States of America Patent
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Apr 7, 2009
Grant Date -
May 17, 2007
app pub date -
Oct 16, 2006
filing date -
Nov 16, 2005
priority date (Note) -
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Abstract
Bandgap reference circuits capable operating in low voltage environments. In the bandgap reference circuit, a current generation circuit generates an output current obtained by combining a first current, a second current and a third current. The first current is converted from a first voltage and a first forward voltage of a first constant voltage generation element. The second current and the third current are both converted from a voltage difference between the first forward voltage and a second forward voltage of the second constant voltage generation element. A current-to-voltage generator converts the output current to an output voltage.
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