Temperature sensor for measuring thermistor resistance
First Claim
1. A method for determining thermistor resistance, the method comprising:
- providing a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device;
coupling the driver device to the receiver device using a dual bond wire system;
separating the dual bond wire system into a first set of bond wires and a second set of bond wires;
connecting each of the first set of bond wires and the second set of bond wires between a pin of a chip package and a pad on a chip die utilizing two pads per pin, wherein the first and second set of bond wires connect to the same pin of the chip package of the temperature sensor;
sending current through the first set of bond wires of the dual-bond wire;
determining at least one output voltage using at least one input current flowing through the dual bond wire system excluding the voltage through the first set of bond wires;
amplifying the at least one output voltage;
dithering the at least one amplified output voltage by applying a plurality of small voltages to the at least one amplified output voltage wherein the plurality of small voltages cover a range of a predetermined least significant bit (LSB) of an analog-to-digital converter (ADC) used for digitization; and
determining the thermistor resistance using the at least one output voltage.
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Accused Products
Abstract
A method and system for determining thermistor resistance have been disclosed. The method comprises providing a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device, coupling the driver device to the receiver device using a dual bond wire system, determining at least one output voltage using at least one input current flowing through the dual bond wire system, and determining the thermistor resistance using the at least one output voltage. The system comprises a wireless sensor device including a temperature sensor network that comprises driver and receiver devices, and a dual bond wire system that couples the driver device to the receiver device, wherein at least one output voltage is determined using at least one input current flowing through the dual bond wire system, further wherein the thermistor resistance is determined using the at least one output voltage.
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Citations
17 Claims
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1. A method for determining thermistor resistance, the method comprising:
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providing a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device; coupling the driver device to the receiver device using a dual bond wire system; separating the dual bond wire system into a first set of bond wires and a second set of bond wires; connecting each of the first set of bond wires and the second set of bond wires between a pin of a chip package and a pad on a chip die utilizing two pads per pin, wherein the first and second set of bond wires connect to the same pin of the chip package of the temperature sensor; sending current through the first set of bond wires of the dual-bond wire; determining at least one output voltage using at least one input current flowing through the dual bond wire system excluding the voltage through the first set of bond wires; amplifying the at least one output voltage; dithering the at least one amplified output voltage by applying a plurality of small voltages to the at least one amplified output voltage wherein the plurality of small voltages cover a range of a predetermined least significant bit (LSB) of an analog-to-digital converter (ADC) used for digitization; and determining the thermistor resistance using the at least one output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for determining thermistor resistance, the system comprising:
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a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device; a dual bond wire system that couples the driver device to the receiver device, wherein the dual bond wire system includes a first set of bond wires and a second set of bond wires, wherein the first set of bond wires and the second set of bond wires are connected between a pin of a chip package and a pad on a chip die utilizing two pads per pin, wherein the first and second set of bond wires connect to the same pin of the chip package of the temperature sensor, and wherein the driver device sends current through the first set of bond wires of the dual-bond wire, and the receiver device determines at least one output voltage using at least one input current flowing through the dual bond wire system excluding the voltage through the first set of bond wires; an amplifier unit, wherein the amplifier unit amplifies the at least one output voltage; and a dithering device, wherein the dithering device dithers the at least one amplified output voltage by applying a plurality of small voltages to the at least one amplified output voltage wherein the plurality of small voltages cover a range of a predetermined least significant bit (LSB) of an analog-to-digital converter (ADC) used for digitization; wherein the thermistor resistance is determined using the at least one output voltage. - View Dependent Claims (17)
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Specification