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Power modules designed for hybrid/electric traction should fulfil lean manufacturing considerations. Robustness study of IGBT modules on the basis of a representative driving cycle is mandatory for safety reasons, cost and lifetime estimation. So power modules can not be oversized and harsh stresses applied conduct to review ageing tests. The power modules for motor drives are subject to multiple...
The paper presents experimental investigations on both power and thermal cycling conditions on 600 V-200 A six-pack IGBT power modules. Both types of cycles are compared in term of thermo- mechanical stresses by using finite element simulations. Finally, combined stresses are simulated in order to assess the real conditions of use of these devices in automotive applications.
HEV is one of the harshest applications for standard technology of power devices and converters. High temperature capability and passive / active thermal cycle ageing must be evaluated. Authors present first results on ageing and failure modes for a 75V/350A MOSFET module from a low voltage / cycled DC current test bench. Bond wires are used for electrical connections between dies and between dies...
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