Analog input for electronic circuit

Details Analog input for electronic circuit Analog input for electronic circuit

2005-12-27

2005-12-27

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

C341S155000

Reexamination Certificate

active

06980141

ABSTRACT:
The invention relates to an analog input for electronic circuit, which input is intended to be connected to an electrical output of a sensor for measuring a physical parameter, the sensor being supplied with a supply voltage Vcc and providing at its electrical output an analog voltage Vs dependent on the parameter to be measured, the analog input comprising an analog/digital converter of resolution RN, wherein it comprises a computer controlling the analog/digital converter so as to perform an analog/digital conversion of the supply voltage Vcc, the analog/digital converter providing the computer with a digital value Rsupp of the supply voltage Vcc of the sensor, an analog/digital conversion of the analog voltage Vs of the parameter to be measured, the analog/digital converter providing the computer with a digital value r of the analog voltage Vs to be measured, and the computer providing a digital value Vn of the parameter to be measured such that: Vn=(r/Rsupp)RN.

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