Title :
Prediction of the resonance effect of the differential mode noise of SMPS
Author :
Hassan, Ahmed ; Al-Hamid, Moawia
Author_Institution :
Inst. of Fundamental Electr. Eng. & EMC, Otto-von-Guericke Univ., Magdeburg, Germany
Abstract :
The prediction of the differential mode (DM) noise resonances of a switching mode power supply (SMPS) is important before prototyping. It requires an appropriate model of the SMPS which considers various frequency-dependent effects. This paper explains the influence of resonances on the conducted DM noise of SMPS by using a new model in the frequency domain. The paths of the DM currents before and after the SMPS can be described by this model. The simulation model has been verified using experimental results, whereby the simulation and experimental results are in good agreement.
Keywords :
circuit noise; frequency-domain analysis; switched mode power supplies; DM current path; DM noise resonances; SMPS; conducted DM noise; differential mode noise; frequency-dependent effects; frequency-domain analysis; resonance effect prediction; switching mode power supply; Cable shielding; Current measurement; Electromagnetic interference; Inverters; Permanent magnet motors; Switches; Synchronous motors;
Conference_Titel :
Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-0718-5
DOI :
10.1109/EMCEurope.2012.6396840
