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1. WO2020064854 - CIRCUIT ARRANGEMENT AND SENSOR ARRANGEMENTS INCLUDING THE SAME

Publication Number WO/2020/064854
Publication Date 02.04.2020
International Application No. PCT/EP2019/075896
International Filing Date 25.09.2019
IPC
H03K 17/94 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
94characterised by the way in which the control signals are generated
G01N 27/12 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02by investigating impedance
04by investigating resistance
12of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid
G01K 7/21 2006.01
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
18the element being a linear resistance, e.g. platinum resistance thermometer
20in a specially-adapted circuit, e.g. bridge circuit
21for modifying the output characteristic, e.g. linearising
G01K 7/25 2006.01
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
22the element being a non-linear resistance, e.g. thermistor
24in a specially-adapted circuit, e.g. bridge circuit
25for modifying the output characteristic, e.g. linearising
CPC
G01K 7/21
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
18the element being a linear resistance, e.g. platinum resistance thermometer
20in a specially-adapted circuit, e.g. bridge circuit
21for modifying the output characteristic, e.g. linearising
G01K 7/25
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
22the element being a non-linear resistance, e.g. thermistor
24in a specially-adapted circuit, e.g. bridge circuit
25for modifying the output characteristic, e.g. linearising
G01N 27/122
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02by investigating the impedance of the material
04by investigating resistance
12of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid ; , for detecting components in the fluid
122Circuits particularly adapted therefor, e.g. linearising circuits
H03K 17/94
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
Applicants
  • AMS AG [AT]/[AT]
Inventors
  • DI PIRO, Luigi
  • PASETTI, Giuseppe
  • SCHIPANI, Monica
Agents
  • EPPING HERMANN FISCHER PATENTANWALTSGESELLSCHAFT MBH
Priority Data
18196597.125.09.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CIRCUIT ARRANGEMENT AND SENSOR ARRANGEMENTS INCLUDING THE SAME
(FR) AGENCEMENT DE CIRCUIT ET AGENCEMENTS DE CAPTEUR LE COMPRENANT
Abstract
(EN)
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.
(FR)
L'invention concerne un agencement de circuit qui comprend une première branche (101) comprenant une résistance de résistance variable (131) et un transistor bipolaire (134) connecté à une diode et une seconde branche comprenant une résistance de résistance fixe (141) et un autre transistor bipolaire (135) connecté à une diode. Une boucle de commande (110) reproduit une chute de tension au niveau de la résistance de résistance variable (131) à une chute de tension au niveau de la résistance de résistance fixe (141). Des bornes de sortie (136, 137) sont connectées aux transistors bipolaires (134, 135) pour fournir une tension différentielle (VBE1, VBE2). L'agencement de circuit peut être utilisé comme circuit frontal analogique dans un agencement de capteur de gaz ou de capteur de température.
Also published as
Latest bibliographic data on file with the International Bureau