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.