Abstract
This paper deals with near magnetic field characterization of power electronic modules. The purpose is to relate near-field (NF) measurement to switching behavioral characteristics. An elementary magnetic sensor is presented and its characterization is detailed. Isolated antenna simulations are computed, thanks to an equivalent lumped parameter model of the antenna. Experimental characterizations are also provided to be compared to simulations. Following that, the characterized antenna is integrated into a specific power electronic device. NF measurements allow us to compute magnetic field mappings of the device under test. Time and frequency analyses of the sensor output data are discussed based on current measurements and magnetic simulation of the power electronic device. Finally, NF measurement enables access to switching details, disturbance propagation paths, and radiation distribution of a power electronic module.
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