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US 2010/0164602 A1Published application
Temperature sensing circuit
AssigneeHynix Semiconductor Inc.
InventorJong-Man Im
Life of this patent
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Abstract
A temperature sensing circuit includes a temperature-dependent voltage generating block configured to generate a plurality temperature-dependent voltages having voltage levels that are changed according to temperature; and a comparing block configured to compare each voltage level of the temperature-dependent voltages with a voltage level of a predetermined voltage to output thermal codes.
Claims23
A temperature sensing circuit, comprising:
- a temperature-dependent voltage generating block configured to generate a plurality temperature-dependent voltages having voltage levels that are changed according to temperature;
- and
- a comparing block configured to compare each voltage level of the temperature-dependent voltages with a voltage level of a predetermined voltage to output thermal codes.
A temperature sensing circuit, comprising:
- a current generating block configured to generate a temperature-dependent current having a current amount that is changed according to temperature;
- a voltage generating block configured to mirror the temperature-dependent current and generate a temperature-dependent voltage through the mirrored current;
- and
- a comparator configured to compare a level of the temperature-dependent voltage with a level of a predetermined voltage to generate a thermal code.
1 more element
A method for sensing temperature, the method comprising:
- generating a plurality of temperature-dependent voltages having voltage levels that are changed according to temperature;
- comparing each voltage level of the temperature-dependent voltages with a voltage level of a predetermined voltage to output thermal codes;
- and
- generating a thermal code having bits that are determined based on the comparisons.
1 more element
Dependencies are inferred from the claim text.