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Evaluation of On-state Voltage VCE(ON) and Threshold Voltage Vth for Real-time Health Monitoring of IGBT Power Modules
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| Author(s) |
Amir ELEFFENDI |
| Abstract |
This paper investigates by experiment and simulation the use of the real-time measurements of on-state voltage VCE(ON) and threshold voltage Vth for real-time health monitoring of IGBT power modules. A study of the dependencies of each parameter on temperature, wear-out mechanisms and operating conditions is presented. Online measurement circuits are developed to obtain these two parameters during the normal operation of power converters. Junction temperature estimation for health monitoring is implemented using Vth which is a thermo-sensitive electrical parameter. The data of VCE(ON), Vth and TJ are combined in a residual-based health monitoring framework which allows the discrimination between two dominant failure mechanisms of power modules: wire-bond lift-off and solder fatigue. |
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| Filename: | 0333-epe2015-full-18110056.pdf |
| Filesize: | 595.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-06-08 by System |
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