Temperature Sensing Method Generating a Temperature Dependent and a Temperature Independent Output Frequencies
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United States of America Patent
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Dec 10, 2015
app pub date -
Feb 10, 2014
filing date -
Feb 21, 2013
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Embodiments of the invention concern a temperature sensor comprising: a same oscillator (2) adapted to alternatively generate a temperature dependent output frequency in a sensing mode and a temperature independent output frequency in a calibration mode, a controller (1) of said oscillator (2), adapted to feed said oscillator (2) with at least a first input signal (VREF), and adapted to change said first input signal (VREF) so as to make said oscillator (2) switch between generating a temperature dependent output frequency and generating a temperature independent output frequency.
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