Patent ID: 9310246
Filing Date: 2016-04-12
CPC Classification: G01H,G01V

Claim Text:
1. A circuit for detecting pressure variations, comprising: at least two pressure sensors electrically coupled in parallel, wherein at least one of the pressure sensors comprises a differential input and a differential output; a first switching mechanism electrically coupled to the differential input of the at least one pressure sensor, the first switching mechanism is configured to electrically couple a first current source to the at least one pressure sensor according to a first reference signal; a resistor electrically coupled to the first switching mechanism, wherein the resistor is configured to provide a resistance that varies based on changes in temperature; and a second switching mechanism electrically coupled to the differential output of the at least one pressure sensor, the second switching mechanism is configured to electrically couple a second current source to the at least one pressure sensor according to a second reference signal.