Circuit for processing the output signal from a resistive analog sensor, in particular for the fuel gauge of a motor vehicle, and systems fitted therewith
US5519397A · kind A · utility
22Cited by
7References
60Claims
0Family size
Inventors
Key dates
| Filing date | Feb 24, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Feb 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a circuit for processing the output signal from a resistive analog sensor, comprising firstly a digital filter, and secondly a module forming a digital-to-impedance converter, which filter and module are interposed in series between the output of the sensor and the input of an associated load, the digital-to-impedance converter presenting an output impedance that is variable as a function of the output signal from the digital filter, which is equivalent to the output resistance of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.