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Intégration des fonctions de protection avec les dispositifs IGBT

Julie Legal 1
1 LAAS-ISGE - Équipe Intégration de Systèmes de Gestion de l'Énergie
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : Reliability and availability of systems energy management are the basic conditions for the spread of electrical solutions in many applications. Power devices must perform not only in normal but also in extreme regimes, such as during short circuits. For this, power switches are combined in a discrete manner to systems of detection and protection. A solution to improve the reliability of the devices is to integrate monolithically within a single chip, the switch and the functions of detection and protection. These devices exploit the integrated electrical interactions that occur in the chip to detect the failure and thus stop it. The power switch is protected and recovered in conduction when the failure is corrected. The power components are able to protect themselves during a failure. The objective of this thesis is to propose solutions for integrating protection and detection functions with IGBT devices to increase the reliability and availability of power systems. We focus on two different detection functions : the current mirror ("Sense") and the sensor anode (anode voltage sensor) to detect short circuits. These two sensors have been studied using 2D simulation and technological achievements. A detection circuit and IGBT protection against short circuits, including the anode voltage sensor monolithically integrated is proposed and simulated. The electrical testing of the sensors in static allow a better understanding of their behavior. Finally, the IGBT associated with its detection and protection is tested in hybrid under short-circuit to validate the operation.
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Contributor : Arlette Evrard <>
Submitted on : Tuesday, February 8, 2011 - 3:08:44 PM
Last modification on : Thursday, June 10, 2021 - 3:05:52 AM
Long-term archiving on: : Tuesday, November 6, 2012 - 1:40:33 PM


  • HAL Id : tel-00564270, version 1


Julie Legal. Intégration des fonctions de protection avec les dispositifs IGBT. Micro et nanotechnologies/Microélectronique. Université Paul Sabatier - Toulouse III, 2010. Français. ⟨tel-00564270⟩



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