Thermostat with resistor-to-digital-converter control of...

Details Thermostat with resistor-to-digital-converter control of... Thermostat with resistor-to-digital-converter control of...

2005-08-02

2005-08-02

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S119000

Reexamination Certificate

active

06924758

ABSTRACT:
The present invention controls a thermostat trip point using a resistor-to-digital converter. Generally, the value of an external resistor is measured and converted to a digital code equivalent. The digital code drives a DAC (Digital-to-Analog Converter) which sets the trip point for the thermostat. The tolerance of the external resistor(s) does not contribute to the tolerance of the trip point.

REFERENCES:
patent: 6377197 (2002-04-01), Rantanen
patent: 6612502 (2003-09-01), Poucher

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