Method and apparatus of measuring temperature
AssigneeMarvell Israel (M.I.S.L) Ltd.
InventorShimon Avitan
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Abstract
The disclosure provides methods and apparatuses of measuring a temperature. A method of measuring a temperature can include generating a time varying signal that varies with time in a known manner, such as having a repeating sawtooth waveform. Further, the method can include generating a first intersecting signal that intersects with the time varying signal at a first time, and generating a second intersecting signal that varies with temperature and intersects with the time varying signal at a second time. Subsequently, the method can construct a pulse signal having a first edge corresponding to the first time and a second edge corresponding to the second time, with the pulse signal having a width corresponding to the temperature.
Claims25
A device including a semiconductor integrated circuit having a temperature measuring circuit that measures a temperature, comprising;
- a reference signal generator circuit that generates a time varying signal that varies with time, a first intersecting signal that intersects the time varying signal at a first time and a second intersecting signal that varies with temperature and intersects the time varying signal at a second time;
- a pulse constructor circuit that constructs a pulse signal having a first edge corresponding to the first time and a second edge corresponding to the second time, a width of the pulse corresponding to the temperature of the temperature measuring circuit;
- and
- a converter circuit that converts the width of the pulse to a value which corresponds to the temperature.
A method of measuring a temperature, comprising:
- generating a time varying signal that varies with time;
- generating a first intersecting signal that intersects with the time varying signal at a first time;
- generating a second intersecting signal that varies with temperature and intersects with the time varying signal at a second time;
- and
- constructing a pulse signal having a first edge corresponding to the first time and a second edge corresponding to the second time, a width of the pulse corresponding to the temperature.
Dependencies are inferred from the claim text.