Integrated circuit and apparatus for detecting oscillations
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United States of America Patent
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May 26, 2015
Grant Date -
Jul 4, 2013
app pub date -
Jan 3, 2012
filing date -
Jan 3, 2012
priority date (Note) -
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Abstract
An integrated circuit includes a pulse generator to provide an excitation pulse to an output terminal and a comparator to receive a signal in response to the excitation pulse and for comparing the signal to a threshold to produce a comparator output signal corresponding to oscillations in the signal. The integrated circuit further includes a counter to count pulses in the comparator output signal and a discriminator circuit to compare a count value of the counter to a damping threshold and for providing an output signal having a first value when the count value is equal to or exceeds the damping threshold and otherwise having a second value.
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