CIRCUIT ARRANGEMENT AND SENSOR ARRANGEMENTS INCLUDING THE SAME

A circuit arrangement comprises a first branch (101) comprising a resistor of variable resistance (131) and a diode-connected bipolar transistor (134) and a second branch comprising a resistor of fixed resistance (141) and another diode-connected bipolar transistor (135). A control loop (110) reprod...

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Bibliographic Details
Main Authors Di Piro, Luigi, Schipani, Monica, Pasetti, Giuseppe
Format Patent
LanguageEnglish
French
German
Published 01.04.2020
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
PULSE TECHNIQUE
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Summary:A circuit arrangement comprises a first branch (101) comprising a resistor of variable resistance (131) and a diode-connected bipolar transistor (134) and a second branch comprising a resistor of fixed resistance (141) and another diode-connected bipolar transistor (135). A control loop (110) reproduces a voltage drop at the resistor of variable resistance (131) to a voltage drop at the resistor of fixed resistance (141). Output terminals (136, 137) are connected to the bipolar transistors (134, 135) to supply a differential voltage (VBE1, VBE2). The circuit arrangement may be used as an analog frontend circuit in a gas sensor or a temperature sensor arrangement.
Bibliography:Application Number: EP20180196597