EMI suppression in high frequency power converters

Research Focus and ongoing activities

  • Measure and analyze the conducted EMI in emerging power converters, switching in MHz frequency range.

  • Design line filter to suppress the conducted EMI.

  • Optimization of filter for the suppression of conducted EMI at higher power levels.

  • Design line filters for two wire universal input SMPS.

  • Comparison of filters design for two wire and three wire input SMPS.

  • Use of near field probes to find the source of EMI


Measurement setup for EMI measurements.

Frequency spectrum of conducted EMI of High frequency half bridge converter.