Temperature-controlled variable resistor
AssigneeDallas Semiconductor Corporation
InventorDallas Ledlow
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Abstract
A device and method to regulate an electronic device in response to temperature changes is shown and described. For example, the present invention can control devices that are operable in different operational modes. The method and the device can be used so as to include steps of sensing a temperature; accessing a table using the sensed temperature; reading an operational mode indicator from the table, wherein the operational mode indicator corresponds to the sensed temperature; and operating the device in the proper one of the operational modes that corresponds to the operational mode indicator.
Claims26
A method for controlling a device operable in a plurality of operational modes, the method comprising:
- sensing a temperature at least in part as a lookup indicia within said table;
- accessing a table using the sensed temperature;
- reading a operational mode from the table, wherein the operational mode corresponds to the sensed temperature;
- and
- operating the device in the one of the plurality of operational modes that corresponds to the operational mode indicator the operational mode of the device according to the read regulator operational mode.
A method for controlling a device operable in a plurality of operational modes, the method comprising:
- sensing a temperature;
- accessing a table using the sensed temperature;
- reading a operational mode from the table, wherein the operational mode corresponds to the sensed temperature;
- and
- operating the device in the one of the plurality of operational modes by adjusting a resistance level of a variable resistor that corresponds to the operational mode indicator the operational mode of the device according to the read regulator operational mode.
A temperature-responsive regulation device comprising:
- a temperature sensor configured to sense a temperature;
- a storage device configured to store a plurality of settings, wherein each one of the plurality of settings is associated with at least a particular temperature within a range of temperatures;
- a regulator configured to be operable in one of a plurality of modes, wherein each one of the plurality of modes corresponds to at least one of the plurality of settings stored in the storage device and wherein the plurality of modes comprises a plurality of resistance levels;
- and
- a controller electronically coupled with the temperature sensor, the storage device and the regulator;
- wherein the controller is configured to retrieve a first of the plurality of settings from the storage device in response to receiving the temperature sensed by the temperature sensor;
- and
- wherein the controller is configured to communicate at least an indication of the retrieved first of the plurality of settings to the regulator to thereby cause the regulator to be operable in a corresponding one of the plurality of modes.
A device comprising:
- a temperature sensor for sensing a temperature;
- a regulator electronically coupled to the temperature sensor, wherein the regulator is configured to be operable in a plurality of operational modes;
- and
- a memory device electronically coupled with the regulator, wherein the memory device is configured to store a Operational mode plurality of indicators;
- wherein each of the plurality of operational mode indicators is associated with at least one of the plurality of operational modes;
- and
- wherein each one of the plurality of indicators is associated with a particular temperature;
- and
- wherein a first of the plurality of indicators is retrievable responsive to the memory device receiving at least an indication of the sensed temperature;
- and
- wherein the regulator is configured to receive the first of the plurality of indicators and thereby operate in the one of the plurality of operational modes that is associated with the received first of the plurality of indicators.
Dependencies are inferred from the claim text.