Circuit for measuring a resistance
US11789054B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2019 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Nov 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for measuring an unknown resistance of a resistive element comprises a sensor circuit to generate a differential voltage dependent on the resistance of the resistive element and a reference circuit to generate a differential reference voltage and a sigma-delta converter comprising a first stage, wherein a first capacitor is selectively coupled to one of the output terminals of the sensor circuit and a second capacitor is coupled to one of the output terminals of the reference circuit. The circuit generates logarithmically compressed values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.