Centre National De La Recherche Scientifique

Stmicroelectronics S.a.

Universitè De Montpellier

Pascal Nouet

Pascal Salome

Philippe Flatresse

Christophe Entringer

Stéphanie Dournelle

Florence Azais

Frederick Mailly

Benjamin Caillard

Laurent Latorre

El Mehdi Boujamaa

Florence Azaïs

Frédérick Mailly

A circuit for amplifying a signal representing a variation in resistance of a variable resistance comprising at least one first load linked to an output terminal of a first transistor whose other terminal is associated with a variable resistance, in such a way as to allow the recovery of the amplified signal at the terminals of the first load.

Circuit for amplifying a signal representing a variation in resistance of a variable resistance and corresponding sensor

An embodiment of a protection circuit, comprising a first PNP-type bipolar transistor and a second NPN-type bipolar transistor, the base of the first transistor being connected to the collector of the second transistor and the collector of the first transistor being connected to the base of the second transistor, in which a MOS transistor is connected between the collector and the emitter of the second transistor.

Gated thyristor and related system and method

An electrostatic discharge protection device comprises several thyristors which are connected in parallel between two nodes of an electrical circuit. It also includes a control circuit having an output connected to the control trigger terminal input of each of the thyristors. In response to an abnormal variation in a voltage between the two nodes being detected, the control circuit initiates a triggering current on the output so as to trigger the thyristors to conduct current between the two nodes. Preferably, the thyristors are arranged in a semiconductor substrate so as to have low hold voltages and small geometrical dimensions.

Electrostatic discharge protection device comprising several thyristors

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Combaillaux, France

Pascal Nouet