COMPARATOR OF A DIFFERENCE OF INPUT VOLTAGES WITH AT LEAST A THRESHOLD
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United States of America Patent
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Issued Date -
Aug 23, 2012
app pub date -
Feb 16, 2012
filing date -
Feb 17, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A comparator is configured to generate an output voltage representing the comparison between the absolute value of the difference between two input voltages with an adjustable reference voltage. The comparator includes an input differential amplifier, receiving the two input voltages and connected to an active load network controlled by a control voltage, a control circuit that generates the control voltage representing the adjustable reference voltage, and an output stage having a logic circuit configured to produce the output voltage of the comparator as a logic combination of the output voltages of the differential amplifier.
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