Temperature sensor and temperature sensing method
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United States of America Patent
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Feb 21, 2017
Grant Date -
Jul 24, 2014
app pub date -
Jan 17, 2014
filing date -
Jan 18, 2013
priority date (Note) -
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Abstract
Provided is a temperature sensing circuit and a temperature sensing method including a delay unit delaying an input clock signal to generate a feedback clock signal, and including logic gates of which delay times are variable according to temperature, a delay control unit comparing the feedback clock signal with a reference clock signal and controlling each of the logic gates of the delay unit according to the comparison result, and an input signal control unit selecting, as the input clock signal, any one of the feedback clock signal and the reference clock signal to input the input clock signal to the delay unit.
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