Comparator with self-limiting positive feedback
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United States of America Patent
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Jul 22, 2014
Grant Date -
Nov 7, 2013
app pub date -
Jul 2, 2013
filing date -
Jul 2, 2009
priority date (Note) -
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Abstract
A method and circuit for attenuating positive feedback in a comparator in one embodiment includes an amplifier configured to compare a first input signal with a second input signal and to provide an output based upon the comparison, a non-linear function with a first input operably connected to an output of the amplifier, and a feedback loop operably connected to the output of the non-linear function and to a second input of the non-linear function, the feedback loop including a feedback limiting circuit configured to attenuate a feedback signal to the second input of the non-linear function.
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