In this paper an analysis of the influence that different heatsink configurations have on the generation of conducted electromagnetic interference (EMI) in switched mode power supplies is provided. A prototype 7 kVA AC/AC voltage regulator with four IGBTs was used for the purpose. A subdivision of its original large heatsink among the switching devices is studied in order to emphasize the effects of the stray capacitance variation on the common-mode component of the EMI. Measurements of conducted emission and of its components were carried out and compared for three heatsink configurations.
A. Dolente, U. Reggiani, L. Sandrolini (2005). Analysis of the heatsink influence on conducted EMI generation in SMPS. ZURICH : Lab. for Electromag. Fields and Microwave Electr..
Analysis of the heatsink influence on conducted EMI generation in SMPS
DOLENTE, ANDREA;REGGIANI, UGO;SANDROLINI, LEONARDO
2005
Abstract
In this paper an analysis of the influence that different heatsink configurations have on the generation of conducted electromagnetic interference (EMI) in switched mode power supplies is provided. A prototype 7 kVA AC/AC voltage regulator with four IGBTs was used for the purpose. A subdivision of its original large heatsink among the switching devices is studied in order to emphasize the effects of the stray capacitance variation on the common-mode component of the EMI. Measurements of conducted emission and of its components were carried out and compared for three heatsink configurations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
