Diode detecting circuit
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United States of America Patent
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Feb 27, 2007
Grant Date -
Jan 19, 2006
app pub date -
Nov 30, 2004
filing date -
Jul 13, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A diode detecting circuit which cancels temperature dependence of a detecting diode so as to obtain highly sensitive detection. The diode detecting circuit has a first diode detecting unit in which a first diode detects an input signal biased by a bias voltage, a second diode detecting unit in which a second diode receives the bias voltage, and an output unit which compares an output from the first diode detecting unit with an output from the second diode detecting unit.
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