Thermistor Emulating CT Clamp
First Claim
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1. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
- a thermostat comprising at least one thermistor input;
a measurement device in communication with the thermistor input of the thermostat, the measurement device having a clamp portion and a measurement portion, the clamp portion positioned about an electrical conductor to promote the measurement, by the measurement portion, of an electric current of the electric conductor; and
a conditioning component configured to convert the measured electric current, from the measurement portion, to resistance measurable by the thermostat, via the thermistor input, the thermostat having logic and a display to display information related to the measured electric current based on the converted resistance.
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Abstract
A heating, ventilation, and/or air conditioning (HVAC) system with a thermostat operable to receive, process, and display power consumption information received via a thermistor input of the thermostat. The thermostat receives power consumption information from a measurement device in communication with the thermostat via a wired interface and the thermistor input, wherein the measurement device comprises a clamp portion positionable about an electric conductor, a measurement portion, and a conditioning component.
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Citations
20 Claims
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1. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
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a thermostat comprising at least one thermistor input; a measurement device in communication with the thermistor input of the thermostat, the measurement device having a clamp portion and a measurement portion, the clamp portion positioned about an electrical conductor to promote the measurement, by the measurement portion, of an electric current of the electric conductor; and a conditioning component configured to convert the measured electric current, from the measurement portion, to resistance measurable by the thermostat, via the thermistor input, the thermostat having logic and a display to display information related to the measured electric current based on the converted resistance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
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a measurement system having; a clamp portion configured to be positionable about an electric conductor; a measurement portion configured to measure electric current from the electric conductor; and a conditioning component configured to convert the measured electric current to resistance for output to a 10 k thermistor input; wherein the measurement system is operable to communicate the resistance to a thermistor input of a thermostat. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A thermostat comprising:
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at least one thermistor input; logic to receive and process resistance measurements via the at least one thermistor input; and a display operable to present information communicated via the thermistor input; wherein the thermostat is operable, via the logic and display, to process and display resistance measurements to indicate power consumption for at least a portion of a structure. - View Dependent Claims (17, 18, 19, 20)
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Specification