Thales

Bertrand Gerfault

Dominique Heurguier

François Delaveau

Philippe Denis

Dominique Heurgier

Andre Bouchet

Pierre-Yves Mailloux

James Belluot

Wilfried Alain Demenitroux

Alain Siersdorfer

Cécile Berthelot

Benoît Gallais

Alexis Gabin

Louis Defrance

Frank Chahbazian

A method is provided for selectively, dynamically and adaptively jamming the third-party radio communications that are external to a radio communication network to be protected, which optimizes the effectiveness of the jamming of P predefined areas or positions in a network of transmitters, and which uses closed-loop control to limit fratricidal effects on certain platforms having telecommunication transmitters/receivers to be preserved.

Method for jamming communications in a closed-loop control network

The present invention relates to a protection circuit for MOS-technology field-effect transistors. The circuit comprises at least one MOSFET protected by a module for blocking said MOSFET, the module being placed between the gate of the MOSFET and an electrical conductor, the module comprising switched connection means having at least two states: a first state which connects the gate of the MOSFET to the conductor, which is maintained at an electrical potential suitable for blocking the MOSFET, this first state being activated in the presence of an alarm signal; and a second state which disconnects the gate of the MOSFET, this second state being activated in the absence of the alarm signal. The invention applies notably to the protection of the power MOSFETs included in the amplification stages of electronic systems.

Protection circuit for MOSFET

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Gennevilliers, France

Bertrand Gerfault