Stmicroelectronics S.a.

Franck Galtie

Arnaud Florence

Jérôme Heurtier

Olivier Ladiray

Jérome Heurtier

A method and a circuit for limiting the current in an inductance, comprising means for interrupting the power storage in the inductance at the end of a delay triggered by the current in the inductance.

Current limitation in an inductance with a limit current adaptation

A generator of at least one pulse width modulated signal, including: a generator of a sawtooth signal a generator of high and low reference signals defining, based on a set-point signal, a linear range of each ramp of the sawtooth signal at least one element of comparison of the sawtooth signal with each of the reference signals and at least one element of logic combination of the comparison results, providing the pulse width modulated signal.

Pulse width modulated generator

A monolithic component including two thyristors of a composite bridge connected to an A.C. voltage terminal by a common terminal corresponding to a common rear surface metallization forming an electrode of opposite biasing of each thyristor. An isolating wall separates a substrate in two portions, a first portion includes on its lower surface side an anode region and on its upper surface side a cathode region, the second portion includes on its lower surface side a cathode region and on its upper surface side an anode region. The isolating wall surrounding each of the components extending towards the main electrode on the side which carries no common metallization and including in this extended region an N-type area, the two areas being connected together to a common control terminal.

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Veretz, France

Franck Galtie