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The electric field in a baseline Integrated Power Electronic Module (IPEM) as a function of different parameters is evaluated. The electric field distribution inside the embedded insulation material in the IPEM is studied, and several improved structures are discussed. Simulation results suggest that the peak electric field intensity in the embedded insulation material can be reduced by 40%. The blocking capability of the improved structures is not degraded by voids inside the embedded insulation material. The experimental results agree with the simulation results.
Date of Conference: Feb. 25 2007-March 1 2007